In the equation x + y = 8, find the value of x if y = 3

3
5
7
11

Answers

Answer 1

Answer:

11

Step-by-step explanation:

x+y=8     y=3

x+3=8

-3     -3

x=11

Answer 2

Answer:

substitute y in the equation

x+3=8

then we solve for x

transpose 3 to the right 8-3=5so therefore x=5


Related Questions

The equation and the graph in the picture describes different functions. Which statement best compares the slopes and y-intercept of the functions? Please explain your answer

Answers

Answer:

C. Function f(x) has the same slope and a greater y-intercept than the function g(x).

A candle is in the shape of a square prism. The candle is 15 centimeters high, and its volume is 960 cubic centimeters. Find the length of each side of the square base.

Answers

Answer:

it says 15

Step-by-step explanation:

help me solve this please

Answers

try 3.5 since 3.48 is that when to the nearest tenth

A representative sample of 60 students from a middle school is surveyed. Each student is asked what transportation method they use to get to school. The table below shows the responses.


Transportation Method Number of Students

Ride a bike 7

Ride a bus 20

Ride in a car 18

Ride a scooter 6

Walk 9


Complete the statements about all the middle school students based on the sample results.


It is expected that ___times as many students at the middle school ride in a car as walk to school.


It is expected that ___% of the middle school students ride a scooter to school.


In a random sample of 45 students at the middle school, it is expected that___students ride a bus to school.


In a random sample of 360 students at the middle school, it is expected that ___ students ride a bike to school.

HELP ME!! HURRY

Answers

Answer:

2, 10%, 15, 42

Step-by-step explanation:

18 / 9 = 2

Total number of students = 60

6 / 60 = 1/10 or 10%

1/3 ride the bus, so a sample of 45 would give 15

7/60 ride a bike so multiply by 360 = 42

Answer: 2,10,15,42

Step-by-step explanation:

Simplify the expressions by combining like terms

10r - 5r + 3r - 8r

Answers

Answer:

0

Step-by-step explanation:

Combine like terms, perform the operations with the coefficients of the variable, then write the variable.

10r - 5r + 3r - 8r

= 5r + 3r - 8r

= 8r - 8r

= 0

Answer:

0

Step-by-step explanation:

10r-5r=5r

5r+3r=8r

8r-8r=0

i will give brainliest

Answers

Answer:

3532.5

Step-by-step explanation:

The formula for the volume of a cylinder is 3.14 times R^2 times H

I calculated it

I'll mark the best or first as brainlest.

Answers

The answer will be 83

please help!! giving brainlest , please be serious. due in a few minutes thanks!

Answers

The answer is -7

The arrows both point toward the left side, and sine there are seven spaces the arrows are going through, you subtract 7 spaces and get -7

Hope that helps.

-7 should be the answer hope it helps alittle !

What is the explicit formula for this arithmetic sequence?
3,9,15,21,27​

Answers

Answer:

Step-by-step explanation:

Formula is to add 6. As you can see: 3+6=9; 9+6=15; 15+6=21 and 21+6=27.

I hope this was helpful.

The explicit formula is to add 6

Can someone explain how linear function is used in math and how it works

Answers

Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y.

Answer:

Linear functions are those whose graph is a straight line. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y. ... It is also known as the slope and gives the rate of change of the dependent variable.

Step-by-step explanation:

Credit: http://www.columbia.edu/itc/sipa/math/linear.html#:~:text=Linear%20functions%20are%20those%20whose%20graph%20is%20a%20straight%20line.&text=A%20linear%20function%20has%20one,the%20dependent%20variable%20is%20y.&text=It%20is%20also%20known%20as,change%20of%20the%20dependent%20variable.

Use that website! It's helpful to me! :)

The original rectangle below has an area of 15 square centimeters. If a scale factor of 2 is used, what is the area of the new rectangle in square centimeters?

A=bh
what's the answer??

Answers

Answer:

60 cen squared.

60 cm sq should be the answer

A health club charges a $50 initial fee plus $2 for each visit. Moselle has spent a total of $144 at the health club this year . Use an equation to find how many visits she has made

Answers

Answer:

Use these variables to make an equation-

y is the total amount.

$50 is where you start charging(y-intercept, variable b).

x is how many visits Marsha made.

The equation can be in slope-intercept form (y=mx+b)-

$144=$2x+50

Solve for x using inverse operations.

Subtract 50 from both sides-

144-50=2x+50-50

94=2x

Divide 2 from both sides-

94/2=2/2

x=47

Moselle made 47 visits to the health club.

Step-by-step explanation:

Solve this equation until you have the squared variable for the missing side length on one side of the equal sign and a rational number on the other.

Answers

The solution of the equation 9² + 12² = c² will be 15 and negative 15.

What is the solution to the equation?

A designation of amounts to the unknown parameters that establish the equals in the formula is referred to as a result.

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The equation is given below.

9² + 12² = c²

Simplify the equation, then the value of the variable c will be

c² = 81 + 144

c² = 225

c = ±√225

c = ±√(15)²

c = ± 15

Thus, the solution of the equation 9² + 12² = c² will be 15 and negative 15.

More about the solution to the equation link is given below.

https://brainly.com/question/545403

#SPJ2

can someone please answer this thanks :3

Lisa, Michelle, and Tami went to Harborville Pizzeria for dinner. Their bill for the dinner was $18.50. If the girls added a 20% tip and divided the bill evenly, approximately how much did each girl contribute for the meal?

Answers

Answer: $11.1

Step-by-step explanation:

tip= 3.70

3.70+18.50=22.20

22.20/2=11.1

Answer: $11.1 goodluck and goodluck! Hehe! ^^

Find the total area for the following composite shape.

A.48 sq m
B.36 sq m
C.84 sq m
D.64 sq m

Answers

Answer:

C. 84

Step-by-step explanation:

To make it easier to find the total area, you should break the shape into two parts, a triangle and a rectangle.

Step 1:

To find the rectangle area we now we have to multiply l * w

In this case, the length is 12 and the width is 4 so 12*4 = 48

Step 2:

To find the area of the triangle you have to do the formula A = 1/2bh where b is the base 12, and h is the height (10-4) 6. So 6*12 = 72 and 72/2 is 36

Step 3:

Last you need to add the area of both the rectangle and the triangle to get the total area of 84 sq meters

Have a good day!!!

I HAVE POINTS TO GIVE FOR THE FIRST CORRECT PERSON TO AWNSER THESE QUESTIOnS
Find the difference of -4 - (-9) *
Find the difference of -9 - 4 Which expression has the same value as (-14) - (-8)? *
1 point
(-14) + 8
14 - (-8)
14 + (-8)
(-14) + (-8)

Answers

-6 is the answer for the first one after the one point 6 is the answer for the one under that 8 is the answer for the third one down and the last one is -22

blake bought 6 light bulbs that contained 8 light bulbs each. he then used 14 of the light bulbs for his science project. how many of them are left?

Answers

34 light bulbs are left

Answer:

34

Step-by-step explanation:

you would multiply 6×8=48 then u subtract 48-14=34

You know that multiplication can also be expressed as repeated addition. Why is it more difficult to use repeated addition when multiplying two mixed numbers than it is to use repeated addition when you are multiplying a mixed number by a whole number?

Answers

Answer:Let's start with the underlying fact. Multiplication simply is not repeated addition, and telling young pupils it is inevitably leads to problems when they subsequently learn that it is not. Multiplication of natural numbers certainly gives the same result as repeated addition, but that does not make it the same.

Step-by-step explanation:

Please answer the questions that are in the picture

Answers

Answer:

a. $31,000,000,000

b. $217,000,000,000

c. 3%

Step-by-step explanation:

Some divide some multiply

Please help me this is due today

Answers

the answer is 3/8 :)))

This is a pretty easy question but I am confused. 6th grade math.
I will give brainliest to right answer!

Answers

Answer:

2 and 2/5

Step-by-step explanation:

have a great day :D

Answer: 2 2/5

Use a calculator and divide 4/5 from 1/3

Hope that helps :)

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Answers

Answer:

is that a cat

Step-by-step explanation:

Hello my name is Obama and I jist wanted⚠ to let you know I know how to beat bix with a little bit auu ptptptptppt yeaahhh ptptpttttptpt, no obama your doing it wrong you gotta do it like this⬆ 헝가리 왕국 있는 것은 아니다, your both wrong I can beatbox than both fo you, cause I can do a little bit a تقرقهقخصخيرقرقخيخ قنثخيهيعقرقهثمثنقوق yes I win now give me the puppies, no your all wrong only I know how to beat box and its all bout the pugh lauy paaa pa paa paaaa pa pa apa paa rt trr tppaaPa prtt tpapa tpapa rpapaore arest in peice

Please help me!!!n brainy to whoever answers correctly!

Answers

Slope= y^2-y^1/x^2/x^1. The first one is 3/8
There you go! I’ve struggled with linear equations too! You’ll get better over time❤️

On Andrew's note, he wrote that -5 > -10. Which number did he indicate was the greater number?
A. 0°
B. -10°
C. -5°

Answers

The answer is C because -5 is greater -10

Can someone plsss help?

Answers

Answer:

A

Step-by-step explanation:

I know math and (-10)/3 = -3.3 which is what the expression equals.

Answer is C because all the other answer that are there are clearly not the one.

i will give brainliest

Answers

Answer:

251.2in³

Step-by-step explanation:

V=πr²h

V=(3.14)(4²)(5)

V=(3.14)(16)(5)

V=251.2in³

The answer is 251.2 inches

plz help on my math i dont under stand plz help plz plz plz

Answers

Answer:

70 Megabytes

Step-by-step explanation:

So first find out how many each picture takes up, 528/264=2, so each takes you 2 megabytes. Now multiply the 35 pics by 2 and you get 70

What is the name of your profile pic?

70 your welcome lol

can you help me plssssss

Answers

120 square centimeters i think?
120 square centimeters

Drag each scenario to show whether the final result will be greater than the original value, less than the original value, or the same as the original value.

Answers

Answer: this is not possible we need to be able to edit this to do that unless someone comes in and has the mid of albert instien

Step-by-step explanation:

Which number can be inserted in the box to make the given equation true?

Enter the number only.

Answers

Answer:

4

Step-by-step explanation:

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