4 years ago

Combine like terms (simplify)

1 answer:

6 0

1) 8x-13
2)19r-19s
3)8m-10n
Solve in the parentheses then label the ones with the same variable and solve those setting up the equation with variable first. Do check this I am not perfect.

Hope this helped! ;)

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The length of a rectangle is four times its width. if the area of the rectangle is 100 cm2 , find its perimeter.

sveticcg [70]

Define x:
Let the width be x.
width = x
Length = 4x

Given the area, find Length and Width:
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Area = Length x Width
x(4x) = 100

Evaluate the Left Hand Side:
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Divide by 4:
x² = 25

Square root both sides:
x = 5

Find the Width and the Length:
Width = x = 5
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Find Perimeter:
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