A line is represented by the equation y=x-7. What is the y-intercept of the line?
Answers
Answer: -7
In the slope-intercept format y = mx+b, b is always the y-intercept. If it is with a positive sign, the y-intercept is positive and if it is negative then the y-intercept is negative.
Related Questions
PEDMAS?
Example 1:
3+8(4-2)-7
Parentheses First = 3+8(2)-7
Exponents-none
Multiply/Divide 3+16-7
Add/Subtract 19-7 = 12
Example 2:
32-(9-5)+7x3-8÷2
Parentheses 32-(4)+7x3-8÷2
Exponents 6-4+7x3-8÷2
Multiply/Divide 6-4+21-4
Add/Subtract 2+17=19
Review
Directions: Compute the answers using PEMDAS.
1) 7 x 5 + 3=
2) 8 - (6 + 2)=
3) 10 - 6 + 5=
4) (21 3) x 2=
5) (12 6) + 6=
6) 3 + 10 5=
7) 8 + 4 - 2=
8) 7 + 5 - 5=
9) 16 8 - 1=
10) (20 - 17) - 3=
11) 8 + 2 - 7=
12) 18 (4 + 2)=
13) 8 - 6 + 7=
14) 5 - (18 6)=
15) 2 + 13 - 4=
16) (7 - 4) + 3=
17) 9 - 7 + 4=
18) 2 x 6 3=
19) 15 5 + 4=
20) 8 + 6 - 4=
Answers
Answer:
1. 38
2. 0
3. -1
4. 14
5. 8
6. 5
7. 10
8. 7
9. 1
10. 0
11. 3
12. 2
13. 5
14. 3
15. 11
16. 6
17. 2
18. 4
19. 7
20. 10
Step-by-step explanation:
Here are the answers to the review questions using PEMDAS:
1) 7 x 5 + 3= 38
2) 8 - (6 + 2)= 0
3) 10 - 6 + 5= 9
4) (21 / 3) x 2= 14
5) (12 / 6) + 6= 8
6) 3 + 10 x 5= 53
7) 8 + 4 - 2= 10
8) 7 + 5 - 5= 7
9) 16 / 8 - 1= 1
10) (20 - 17) - 3= 0
11) 8 + 2 - 7= 3
12) 18 x (4 + 2)= 108
13) 8 - 6 + 7= 9
14) 5 - (18 / 6)= 2
15) 2 + 13 - 4= 11
16) (7 - 4) + 3= 6
17) 9 - 7 + 4= 6
18) 2 x 6 / 3= 4
19) 15 / 5 + 4= 7
20) 8 + 6 - 4= 10
Which list orders the numbers from least to greatest?
Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth
A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3
Answers
Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth
Hope my answer helps you✌️
The triangle below is a right triangle. What is the length of the missing side? Round your answer to the nearest whole number?
A. 7 inches
B. 11 inches
C. 15 inches
D. 225 inches
Answers
Answer: C) 15
Step-by-step explanation:
Use the Pythagorean theorem
\(x^{2}\)= \(12^{2}\) + \(9^{2}\)
\(x^{2}\) = \(225\)
\(x = \sqrt{225}\)
\(x = 15\)
Answer:
C
Step-by-step explanation:
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answers
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?
2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100
Answers
The correct proportion to use to find the amount of orange juice, j, needed to add to 18 L of pineapple juice is:
2/8 = j/18
This proportion relates the ratio of orange juice to pineapple juice in the recipe (2:8) to the amount of orange juice needed to add to 18 L of pineapple juice. By cross-multiplying, we can solve for j as follows:
2/8 = j/18
218 = 8j
36 = 8*j
j = 36/8
j = 4.5
Therefore, you would need to add 4.5 L of orange juice to 18 L of pineapple juice to create the fruit juice recipe that calls for a ratio of 2 parts orange juice to 8 parts pineapple juice.
Answer:
2 over 8 equals j over 18Step-by-step explanation
2 over 8 equals j over 18
This proportion represents the ratio of orange juice to pineapple juice in the recipe. By setting up the proportion, we can solve for the value of 'j,' which represents the amount of orange juice needed.
So, the correct proportion is:
2 over 8 equals j over 18
(9 POINT QUESTION)A claw arcade machine contains stuffed animals and mystery boxes. There are 51 items in the machine. Winning a stuffed animal has twice as many favorable outcomes as winning a mystery box. How many of each item is in the machine?
Answers
Answer:
There are 56 stuffed animals and 28 mystery boxes in the claw arcade machine
Firstly, we assign variables.
Let the number of stuffed animals be x and the number of mystery boxes be y
The probability of selecting a stuffed animal is x/84 while the probability is selecting a mystery box is y/84
Now, since the total probability can be 1:
This means that
x/84 + y/84 = 1 •••••••(i)
Now from the question, we were told that the probability of selecting or winning a stuffed animal is twice that of winning a mystery box
Thus x/84 = 2 * y/84
X/84 = y/42
Let’s substitute this into equation 1
y/42 + y/84 = 1
(2y+ y)/84 = 1
3y/84 = 1
3y = 84
y = 84/3
y = 28
Since x + y = 84
x = 84 - y
x = 84-28 = 56
Hope this helps!!
51=3x
/3 /3
17=x
Stuffed animal=2x
2x=34
Mystery box=x
x=17
Can someone pls help me , I take math today ( marking brainlest )
Answers
Answer:
7- 13
8-20
9- -2
10
Step-by-step explanation:
Rational Exponents and Nth Roots
Step 1: Separate Nth Root
Step 2: Rewrite as Radical
Step 3: Evaluate
Ex: 27 ^2/3= (27 ^ 1/3)^ 2= (3 next to the square root of 27) ^ 2 = 3^2= Final Answer 9.
(1.) 125 to the power of 2/3= (125 to the power of 1/3) to the power of 2= ?
(2.) (-243) to the power of 2/5= (-243 to the power of 1/5) to the power of 2= ?
(3.) (-128) to the power of 5/7= (-128 to the power of 1/7) to the power of 5= ?
(4.) 343 to the power of 4/3= (343 to the power of 1/3) to the power of 1/4= ?
Answers
Answer:
3 is the answer
Step-by-step explanation:
The system of equations represented by lines p and q is shown on the graph below. Based on the graph, what is the solution of the system of equations.
Answers
Answer:
C(2,1)
Step-by-step explanation:
(ANswer quickly please!) giving brainliest !!!
Last summer, a sports club had 380 members. This summer, due to some renovations, it has 30% more members. How many members are there now?
Answers
Answer:
494
Step-by-step explanation:
380 * 1.3 = 494
Your portfolio must include a minimum of the following five types of equations and solutions:
Two one-step equations
Two equations that contains fractions
One equation with distributive property
One equation with decimals
One real-world problem that is solved by an equation
Remember that each equation must include at least one variable. Once you have created each equation, you will solve it and show your work. Pretend that you are teaching the equations to a new pre-algebra student. Or you can actually teach them to a sibling or friend!
This is a total of 7 equations and solutions.
Answers
Answer:
Step-by-step explanation:
A. x + 5=12
7x = 21
B. b - 2/3 = 5/6
1/5m = 20
C. 45 = 3(x + 1)
D. 22.5 = 1.5x
E. Mark has $20 in his bank account. He saves $5 each week. How much money does Mark have in his account after 9 weeks? Use w to represent the number of weeks and t to represent the total amount Mark has after any number of weeks.
1) One-step equation:
5x + 3 = 18
Solution:
Subtract 3 from both sides to isolate the variable:
5x + 3 - 3 = 18 - 3
5x = 15
Divide both sides by 5 to solve for x:
5x/5 = 15/5
x = 3
2) One-step equation:
4y - 7 = 9
Solution:
Add 7 to both sides to isolate the variable:
4y - 7 + 7 = 9 + 7
4y = 16
Divide both sides by 4 to solve for y:
4y/4 = 16/4
y = 4
3) Equation with fractions:
2/3 x + 1/4 = 1/2
Solution:
Subtract 1/4 from both sides to isolate the variable:
2/3 x + 1/4 - 1/4 = 1/2 - 1/4
2/3 x = 1/4
Multiply both sides by 3/2 to solve for x:
(2/3 x) * (3/2) = (1/4) * (3/2)
x = 3/8
4) Equation with fractions:
3/4 z - 1/2 = 1/8
Solution:
Add 1/2 to both sides to isolate the variable:
3/4 z - 1/2 + 1/2 = 1/8 + 1/2
3/4 z = 5/8
Multiply both sides by 4/3 to solve for z:
(3/4 z) * (4/3) = (5/8) * (4/3)
z = 5/6
5) Equation with distributive property:
2(x + 5) = 16
Solution:
Use the distributive property to simplify the left side of the equation:
2(x + 5) = 2x + 10
Subtract 10 from both sides to isolate the variable:
2x + 10 - 10 = 16 - 10
2x = 6
Divide both sides by 2 to solve for x:
2x/2 = 6/2
x = 3
6) Equation with decimals:
0.5x + 1.25 = 2.75
Solution:
Subtract 1.25 from both sides to isolate the variable:
0.5x + 1.25 - 1.25 = 2.75 - 1.25
0.5x = 1.5
Divide both sides by 0.5 to solve for x:
0.5x/0.5 = 1.5/0.5
x = 3
7) Real-world problem:
You have $50 to spend on tickets to a concert that costs $10 per ticket. How many tickets can you buy?
Solution:
Let x be the number of tickets you can buy. The total cost of the tickets is 10x. We know that the total cost
Does this answer your question?
PLS
Write a real world problem for the inequality 8-2x≤5.
Answers
Step-by-step explanation:
8-2x< 5-2x<5-8x< -3/-2x<1.5hope it helps.
Please tell me an easy explanation on how to answer this correctly.
Answers
Answer:
-3 - - 6 = 3
2 - - 8 = 10
Step-by-step explanation:
You use keep change change. When subtracting negative you get the first number change the sign to the opposite, then change the second numbers sign
example - -3 - - 6 -3 + 6 2 - - 8 2 + 82-(-8)= -6
Help please I'm super confused
Answers
it's 5x
Step-by-step explanation:
there's the awnser
Compare the pair of numbers. Use <, =, or >.
33
40
333
4
OOO
3/4
434
A
V 11
33
40
33
40
33
40
Answers
Answer:
3/4 < 33/40
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Hope it helped
Help me with this question please.
Answers
Answer: 17.60 is a terming decimal 25.60 is a repeating decimal i dont know the rest sorry
Step-by-step explanation:
If the relationships below are given in the form (input, output), which pairing always describes a function? (a person’s age in years, that same person’s height in inches) (a person’s weight in pounds, that same person’s height in inches) (a person’s height in centimeters, that same person’s height in inches) (a person’s telephone number, that same person’s height in inches)
Answers
Answer:
A function is a mathematical relation in which each input (domain value) is associated with exactly one output (range value). In other words, for a relation to be a function, each input can have only one corresponding output. Let's analyze the given pairings:
(a person’s age in years, that same person’s height in inches) - This can be a function because one person's age in years should correspond to a single height in inches.
(a person’s weight in pounds, that same person’s height in inches) - This can also be a function because one person's weight in pounds should correspond to a single height in inches.
(a person’s height in centimeters, that same person’s height in inches) - This can be a function because one person's height in centimeters should correspond to a single height in inches.
(a person’s telephone number, that same person’s height in inches) - This may not necessarily be a function. It's possible for two different people to have the same height in inches but different telephone numbers.
So, the pairings that always describe a function are:
(a person’s age in years, that same person’s height in inches)
(a person’s weight in pounds, that same person’s height in inches)
(a person’s height in centimeters, that same person’s height in inches)
These three pairings meet the criteria of a function, where each input corresponds to a unique output.
The pairing that always describes a function is option C. (a person’s height in centimeters, that same person’s height in inches)
How did we arrive at this assertion?A pairing describes a function when each unique input (domain element) is associated with exactly one unique output (range element). In other words, there should be no ambiguity or multiple outputs for a single input. Let's analyze the given pairings:
1. (a person’s age in years, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same age, but they might have different heights. So, there can be multiple outputs for the same input (age).
2. (a person’s weight in pounds, that same person’s height in inches): Similar to the first pairing, this may not always describe a function because different people can have the same weight but different heights.
3. (a person’s height in centimeters, that same person’s height in inches): This pairing describes a function because for each unique height in centimeters, there is only one corresponding height in inches.
4. (a person’s telephone number, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same telephone number, but they might have different heights. So, there can be multiple outputs for the same input (telephone number).
So, the pairing that always describes a function is: (a person’s height in centimeters, that same person’s height in inches)
learn more about function describing pairs: https://brainly.com/question/31919824
#SPJ1
Choose the following ratios as a percent: 20 correct out of 25 problems
25%
80%
20%
Answers
Which is a step when multiplying or dividing numbers written in scientific notation?
A. Add or subtract the exponents as needed
B. Express the numbers in standard notation.
C. Make sure the final answer is expressed in standard notation.
D. If the values of the exponents are not like, rewrite the number with the smaller exponent so that it has the value of the larger exponent.
Answers
You usually add / subtract exponents when needed.
What is the equation of the line that passes through the point (-2,7) and is perpendicular to the line x-4y = 24?
Answers
step by step—
Answer:y = -4x - 1
Step-by-step explanation:
x - 4y = 24
-4y = -x + 24
y = x - 6
m⊥ = -4
y = -4x + b
7 = -4 ( -2 ) + b
7 = 8 + b
b = -1
y = -4x - 1
Solve and explain each step
Answers
3marbles in total(1red ,1blue,1green)
If two are chosen:(possible chosen-Red and green or blue and green or blue and red)
So possible chosen with replacement with the options given =
Pr(Green and blue)+Pr(blue and green)
(1/3 x 1/3) + (1/3 x 1/3)
1/9 + 1/9
2/9
Without replacement
Pr(green and blue) + Pr(blue and green)
(1/3 x 1/2) + ( 1/3 x 1/2)
1/6 + 1/6
2/6
1/3
Without replacement = 1/3
3marbles in total (1red , 1blue, 1green)
If two are chosen: (possible chosen-Red and green or blue and green or blue and red)
So possible chosen with replacement with the options given =
Pr(Green and blue)+Pr (blue and green)
(1/3 × 1/3) + (1/3 × 1/3)
1/9 + 1/9
2/9
Without replacement
Pr(green and blue) + Pr(blue and green)
(1/3 × 1/2) + (1/3 × 1/2)
1/6 + 1/6
2/6
1/3
Without replacement = 1/3
ANSWER PLEASE BEFORE 2/14!!!!
Tamara likes to go hiking and tries to hike for at least 30 minutes every week. On Tuesday, she hiked for 1 mile in the morning and 3 miles in the evening. On Thursday, she hiked with a friend for 4 miles. On Saturday she hiked for 5 miles. On Sunday, she hiked for 4 miles. She also hiked for an extra 10 minutes on Sunday night. If she hiked for a total of 350 minutes all week and it takes her the same amount of time to hike each mile, how many minutes does it take her to hike each mile?
Answers
Answer:
20 minutes
Step-by-step explanation:
1+3+4+5+4=17
350-10=340
340÷17=20
If u see this pls view my chann el its called rockingmycoolstyle15 its on y t
Answers
Answer:
:)
Step-by-step explanation:
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
Margo is wrapping a box that is 7 inches long, 10 inches wide, and 4 inches high. How much wrapping paper will she need to cover the entire box?
Answers
She will need to cover six sides of the box. To calculate the surface area of the box, you'll need to add the area of each side. The formula for surface area is: 2lw + 2lh + 2wh. Plugging in the dimensions of the box, we get:
2(7 x 10) + 2(7 x 4) + 2(10 x 4) = 140 + 56 + 80 = 276
So, she will need 276 square inches of wrapping paper. But since she doesn't need to wrap the bottom of the box, we subtract one of the sides, which gives us a total of 268 square inches of wrapping paper.
To calculate the surface area of the box, you need to add the area of all six sides. The area of each side can be found by multiplying the length by the width.
- The area of the front and back sides is 7 x 4 = 28 square inches each.
- The area of the top and bottom sides is 10 x 4 = 40 square inches each.
- The area of the two side sides is 7 x 10 = 70 square inches each.
So, the total surface area of the box is 2(28) + 2(40) + 2(70) = 56 + 80 + 140 = 276 square inches.
Therefore, Margo will need at least 276 square inches of wrapping paper to cover the entire box.
Answer:280 in
Step-by-step explanation: First we multiply the length by the width and that would be 7 by 10 and we would get 70. Next we multiply the height by the total of (l x w), so 4 x 70 would be 280. Margo needs a total of 280 inches of wrapping paper to cover the entire box. Hope this helps! :)
The box plot represents the number of tickets sold for a school dance.
A horizontal line labeled Number of Tickets sold that starts at 8, with tick marks every one unit up to 30. The graph is titled Tickets Sold for A Dance. The box extends from 17 to 21 on the number line. A line in the box is at 19. The lines outside the box end at 10 and 27.
Which of the following is the appropriate measure of center for the data, and what is its value?
Group of answer choices
The mean is the best measure of center, and it equals 19.
The median is the best measure of center, and it equals 4.
The median is the best measure of center, and it equals 19.
The mean is the best measure of center, and it equals 4.
Here is the graph in image form:
Answers
Answer:
I think its the first option.
Step-by-step explanation:
I think Its A because I think the mean is the stretch of a graph like shown in the image which is 19. So, I think that is your answer A.
The city council voted on a new tax. The council has 25 members and 68% of the council members voted in favor of the new tax. How many members voted in favor of the tax?
Answers
Answer: 17
Step-by-step explanation: Take 25 and multiply it by 0.68 (25 x 0.68) and you get 17.
25(0.68)=17
PLEASE ANSWER QUICKLY PLEASEPLEASEPLEASE
Answers
Answer: linear
Step-by-step explanation:
15/56 in simplest form
If you get it right I will mark brainly!
Answers
15/56 is already in the simplest form. It can be written as 0.267857 in decimal form (rounded to 6 decimal places).
Steps to simplifying fractionsFind the GCD (or HCF) of numerator and denominator
GCD of 15 and 56 is 1
Divide both the numerator and denominator by the GCD
\(\dfrac{15\div1}{56\div1}\)
Reduced fraction:
\(\dfrac{15}{56}\)
Therefore, 15/56 simplified to lowest terms is 15/56.
Answer:
15/56
Step-by-step explanation:
What is a fraction?A fraction is a fragment of a whole number, used to define parts of a whole. The whole can be a whole object, or many different objects. The number at the top of the line is called the numerator, whereas the bottom is called the denominator.
To put the fraction 15/56 in its simplest form, you need to find the greatest common divisor (GCD) of the numerator (15) and the denominator (56). The GCD of 15 and 56 is 1. Dividing both the numerator and denominator by their GCD gives us:
\(\frac{15}{1}\) ÷ \(\frac{56}{1}\) = \(\frac{15}{56}\)Therefore, 15/56 is already in its simplest form.
main things I need to know to ace algebra 1? like important keywords, etc.
Answers
Answer:
comming from someone who failed algebra 1 and had to retake it, it's important to remember equations and how to solve them 100% and how to use graphs and locate x and y. words to know are definitely evaluating expressions, writing equations, graphing functions, solving quadratics, and understanding inequalities. linear functions (as well as linear piecewise, absolute value, and step functions), quadratic functions, and exponential functions. it's a lot but try you're best in the class and focus hard!