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Anit [1.1K]
3 years ago
7

The length of a rectangle is 4yd longer than its width. If the perimeter of the rectangle is 72yd, find its length and width.

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0

Suppose the width is w

Then the length will be w+4

Perimeter will be 2 (length + width) = 2 (w + w + 4 ) = 60

Solve this for w. Knowing w you can find the length and width.

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To develop a molecular clock, you need to find which of the following?

a sequence of molecules

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Step-by-step explanation:

To develop a molecular clock, you need to find which of the following?

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4 0
3 years ago
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Help, I need help on this question.
Gnom [1K]

(152.75 - 47) ÷ 11.75

7 0
3 years ago
Solve the system of equations using the substitution method. 2x+8y=4 x=−3y+5
goldenfox [79]
Since x=-3y+5, substitute x for -3y+5. 

2(-3y+5)+8y=4

Distribute. 

-6y+10+8y= 4

2y+10= 4

Subtract 10 on both sides. 

2y=-6

Divide by 2.

y=-3

Plug in y=-3. 

x=-3(-3)+5
x= 9+5
x=14

(14,-3)

We can check this. 

2(14)+8(-3)=4
28-24=4
4=4 <== this works

I hope this helps!
~kaikers
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C) without an external energy source, fiction stops the car

<em>Sure hope this helps you</em>

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