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2 years ago

15

The perimeter of a rectangle is 50 cm and the length is 4 cm longer than the width. Write and solve the system of equations usin

g the substitution method.

1 answer:

laila [671]2 years ago

3 0

I hope this helps you

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If f(7)=22, then f-1(22)=

nignag [31]

Answer:

$f^{-1}$ (22) = 7

Step-by-step explanation:

The inverse function maps the output of the function back to its input

f(7) = 22 means when input is 7 the output is 22

The inverse maps the output 22 back to the input 7 , that is

$f^{-1}$ (22) = 7

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3 years ago

A well pump pumps at a rate of 40 gallons per minute. you want to fill a 1,000-gallon tank. the tank already has 80 gallons. you

Vlad [161]

Possibly 230 minutes?? dont quote me on that lol

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3 years ago

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Katen [24]

5.B
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2 years ago

Which number line shows the solution to the inequality -2(3x-1)<8

Zigmanuir [339]

Answer:

$x > -1$

Step-by-step explanation:

Given

$-2(3x - 1) < 8$

Required

Show on a number line

$-2(3x - 1) < 8$

Divide through by -2

$\frac{-2(3x - 1)}{-2} < \frac{8}{-2}$

$3x - 1 > -4$

Add 1 to both sides

$3x -1 + 1 > -4 + 1$

$3x > -3$

Divide through by 3

$x > -1$

<em>See Attachment for number line</em>

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3 years ago

(4,5) and (11,33) rate of change

Nonamiya [84]

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

m = (33-5)/(11-4)

m=28/7

m=4

slope = 4

8 0

3 years ago

Read 2 more answers