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a rectangle is 6 times as long as it is wide. the perimeter is 140 cm. find the area of the rectangle. round to the nearest tenth if necessary.

User Nagh
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1 Answer

1 vote

Answer:
w = 10

Explanation:

Our perimeter will be 140 cm and our width of the rectangle will be 6w. We will then divide 14w and 140 by 14 so we can get w by itself. Then, we will divide the perimeter by the width.

Step 1: Let 6w will be our length and let the perimeter be 140 cm.


6w, P = 140 cm

Step 2: Perimeter means that you add up all the 4 sides of the rectangle.


P = 140 = w + w + 6w + 6w = 14w


P = 140, 14w

Step 3: Divide both sides 14 to get the single w variable.


(140)/(14) = (14w)/(14)

Step 4: Simplify.


10 = w

Step 5: Flip sides.


w = 10

~I hope I helped you :)~

User Samjhana Joshi
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