y=15x-40 when x = 3 Function and Solution

Answers

Answer 1

Answer:

5

Step-by-step explanation:

Just substitute by the value of x

y = (15 * (3)) - 40 = 45 - 40 = 5

Answer 2

Answer:

the answer is 5

Step-by-step explanation:

15×3=45 then subtract 40 and your get 5


Related Questions

A cleaning product sells for $0.75 a quart. Which equation can be used to solve for the total cost, C , of five gallons of the product? A: C = $0.75 × 4 + 5 B: C = 5 × ($0.75 × 4) C: C = ($0.75 + 4) × 5 D: C = ($0.75 × 5) + 4

Answers

Answer: b. C = 5 × ($0.75 × 4)

Step-by-step explanation:

Note that 4 quarts = 1 gallon

Therefore, if a cleaning product sells for $0.75 a quart, the equation can be used to solve for the total cost, C , of five gallons of the product will be:

= 5 × ($0.75 × 4)

= 5 × $3

= $15

Mary worked 2 3/4 hours on Monday and 1 1/2 hours on Tuesday. How many hours did she work in all on Monday and Tuesday?

Answers

4 and 1/4

Step-by-step explanation:

okay uh you turn the half into 2 fourths and add to get 3 5/4 then simplify and get 4 1/4

y=-2/3x-5 slope and y-intercept ​

Answers

Answer:

Slope = 2/3

Y-intercept = -5

Step-by-step explanation:

Since the equation is written in y = mx + b format. The m is the slope and b is the y-intercept. In place of m is 2/3 and in place of b is -5. Therefore, the slope is 2/3 and the y-intercept is -5.

hope this helps!

Maybe brainliest?

The equation of line is y = ( -2/3 )x - 5 , where the slope is m = -2/3 and the y intercept is b = -5

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

y = ( -2/3 )x - 5

Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

Substituting the values in the equation , we get

Slope m = ( -2/3 )

The y-intercept b = -5

Hence , the equation of line is y = ( -2/3 )x - 5

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ2

Need answers ASAP please and thank you

Answers

Answer:

option C

Step-by-step explanation:

Here, we want the first best step

looking at the expression, we can see that if we divided both sides by -2, we will have to answer a regular

Thus, by dividing both sides by -2, then we have the answer

John makes $400 per week. What does it mean for him to get a l50% salary raise. Explain in words and then give and example showing a calculation

Answers

Answer:

can some one give the answer

Step-by-step explanation:

pls

Please help me! It’s due in few hours.

Give the coordinates of the Image if the pre-image △ JKL is dilated by 3/2.

Answers

Lucky for me I just learned this lol
J: 3,6
K: stuck on this one because if you multiply one by 3/2 you get 3/2 so I don’t know
L:6,0


Able to get what I got, you have to multiply 3/2 by the the x and y axis. For example if x is “6” you’ll get 9. And so on.

Answer:

J'(3, 6), K'(1.5, 1.5), L'(6, 0)

Step-by-step explanation:

△ JKL is dilated by 3/2

This transformation will result in the coordinates:

(x, y) → (3/2x, 3/2y)

Apply the rule:

J(2, 4) → J'(3/2*2 = 3, 3/2*4= 6) = (3, 6)K(1, 1) → K'(3/2*1 = 1.5, 3/2*1 = 1.5) = (1.5, 1.5)L(4, 0) → L'(3/2*4 = 6, 3/2*0 = 0) = (6, 0)

3. The average of two numbers is 55. If their positive difference is 64, then determine the two numbers algebraically.

Answers

Answer:

the numbers are 41 and 23

Step-by-step explanation:

Given data

let the numbers be x and y

x+y/2= 55

cross multiply

x+y= 110----------1

positive difference is 64

x-y= 64-----------2

solve 1 and 2

x+y= 110

x-y= 64

from 1

x= 110-y

put the value of x in 2

110-y-y=64

110-2y=64

110-64=2y

46=2y

y= 46/2

y=23

put y= 23 in 2

x-23= 64

x= 64-23

x=41

2x+3y=-6
4x+6y=-12
6x + ay=-18

Answers

Answer: -18

Step-by-step explanation: I used a math problem calculator. : /

Maths people please write the answers !


Equations- Maths

Answers

Answer:

length = 20cm

breadth = 8cm

Step-by-step explanation:

solution;

length(l) = x + 12

breadth(b) = x

perimeter (p) = 56 cm

we know that,

perimeter(p) = 2(l + b)

or, 56 = 2(x + 12 + x)

or, 56 = 2(2x + 12)

or, 56 = 4x +24

or, 56 - 24 = 4x

or, 32 = 4x

or, 32 / 4 = x

x = 8

now

putting the value of x in length and breadth

length = x+ 12

=8 + 12

=20cm

breadth = 8cm

Answer:

Hope this helps!!!

Step-by-step explanation:

A: x=3

B: x=8

C: x=11

D: x=5

E: x=10

F: x=12

G: x= 10/3

H: x=6

I:  x=3.4

ASAP PLEASE: 16 + 11(-2)2 - 25(⅖) =

Answers

Answer:

-38

Step-by-step explanation:

Will give Brainliest!!!
What is the y=mx+b of the equation 5x+2y=−8?

Answers

Answer:

y = - 5/2x - 4

Step-by-step explanation:

so yeah oofofofofof

Solve the proportion: 5/3 = ?/4​

Answers

Answer:

20/3

Step-by-step explanation:

5/3=x/4

cross product

3*x=5*4

3x=20

x=20/3

Answer:

20/3 = ?

Step-by-step explanation:

5        ?

---- = ------

3        4

We can solve by cross products

5 * 4 = 3 * ?

20 = 3 ?

Divide each side by 3

20/3 = 3?/3

20/3 = ?

Stacey worked on her garden for 4 3/4 hours.

Answers

Answer:

Number one and number 3 i think

Step-by-step explanation:

prove 151^3-25^3 is divisible by 126

Answers

9514 1404 393

Answer:

  151 -25 = 126 is a factor of the difference of those cubes

Step-by-step explanation:

The expression can be factored as ...

  a^3 -b^3 = (a -b)(a^2 +ab +b^2)

  151^3 -25^3 = (151 -25)(151^2 +151·25 +25^2)

  = 126(151^2 +151·25 +25^2)

That is, 126 is a factor of the difference of the given cubes. The difference is divisible by 126.

__

Your calculator tells you 151^3 -25^3 = 126 · 27201.

HELP
What is the Constant of proportionality? I don't know if its 2 or 2.5 because 3 and 7 meet but so do 1 and 2

Answers

I would say 2.5 because if the constant of proportionality was 2 the 4 and 2 also meet. Also at the end the 10 and 4 meet and 10 divided by 4 is 2.5

Write the standard form of the equation of the line through the given point with the given slope.
9) through: (1, 2), slope = 7

Answers

Answer:

The equation for this slope will be y=7x-5

Step-by-step explanation:

Hope this helped


Gabby buys a new purse for $33. The sales tax in her state is 6%. How much is the sales tax?

Answers

Answer:

$1.98

Step-by-step explanation:

$33.00 x 0.06 = $1.98

A scatter plot is made to model the number of calories in different portions of fish sticks. The data used for the scatter plot are shown in the table:


Number of portions 5 3 8 6 1 4
Number of calories 250 150 400 300 50 200


What does the slope of the model represent?
The number of calories in each portion of fish sticks
The number of fish sticks in each portion
The original number of portions of fish sticks
The price of each portion of fish sticks

Answers

Solution: A scatter plot is made to model the number of calories in different portions of fish sticks. The data used for the scatter plot are shown in the table below:

Number of portions

5 3 8 6 1 4

Number of calories

250 150 400 300 50 200

What does the slope of the model represent?

Answer: The number of calories in each portion of fish sticks

Answer:

The number of calories in each portion of fish sticks

Step-by-step explanation:

Hope this helps! God bless :)

Patrick drank 3/4 liter of water Monday before jogging. He drank 4/5 liter of water after his jog. How much water did Patrick drink altogether? (Write fraction answers as a mixed number like this 2 1/2) He drank _____ liters. *

Answers

Answer: 1¹¹/₂₀ litres

Step-by-step explanation:

The fractions need to be added.

Find a common multiple for them.

Common multiple = 20

Divide the multiple by the denominator of the fraction and multiply the numerator by the result you get:

[tex]= \frac{15 + 16}{20} \\\\= \frac{31}{20} \\\\= 1\frac{11}{20}[/tex]

= 1¹¹/₂₀ litres

In a cookie recipe, for every 2 cups of sugar there are 3 cups of flour. How many cups of flour would you need for 6 cups of sugar?

Answers

9 cups of flower is the answer

IM SCROLLING THROUGH ALL OF THESE FRANTIC PLEAS OF HELP YALL I DONT KNOW ETHER YOUR EQUATIONS ARE MAKING MY EYES WATER

Answers

Answer:

What?

Step-by-step explanation:

I don't understand what you're saying.

A net of a rectangular pyramid is shown. The rectangular base has length 26 cm and width 24 cm. The net of the pyramid
has length 74.8 cm and width 71.8 cm. Find the surface area of the pyramid.
The surface area is
cm2 help

Answers

Answer:

kk

Step-by-step explanation:

no pic

A rectangle has four sides. Fill in the blanks in the double number-line below.
rectangles
1
2
3
4
8
12
28
sides





Plz help

Answers

Box 1: 6 Box 2: 16 Box 3: 20 Box 4: 24

A recipe for 24 cookies calls for 6 tablespoons of sugar. If you make 36 cookies and use 10 tablespoons, will the cookies taste the same? Explain and show your work for evidence.

Answers

Answer:

yes it will you are you're fine only multiplying how much is going into the cookie and not what you're putting into the cookie like you're not putting a different flavor into the cookie

This right rectangular prism is filled with -foot unit cubes.
What are the actual dimensions of the prism?
How many unit cubes are in this prism?
What is the total volume of the prism, in cubic feet?

Answers

Answer:

can you use photo math yes or no?

HELP WITH THIS ITS URGET

Answers

Understandable going to ask for help rn

Rachna has nickels, dimes, and quarters in her piggy bank. She has $4.65 altogether. She has three more quarters than dimes and twice as many nickels as quarters. How many quarters does Rachna have?
8
11
22
41

Answers

Answer: 11

Step-by-step explanation: gimme brainliest pleaseeeeeeeeeee

Answer:

B on edge

Step-by-step explanation:

just got it correct

Which table represents a nonlinear function?
X 1
2 3 4
5
6
A
y 3 6 9 12 15 18
X 2 4 6
00
10 12
B
y 4 7 10 13 16 19
X -2 -1 0 1
2 3
C
у
4 2 1 1.5 0.5

Answers

Answer:

3 ONE

IS IT RIGHT

Simplify the expression for the area

Answers

Answer:

UHHHHHHHHHHHHH

Step-by-step explanation:

Which of the following expressions are equivalent to -6-(-2)
Pls I need help

Answers

Answer:

A) -6+2

Step-by-step explanation:

Answer is: A explanation:
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