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A rectangle has a perimeter of 48ft. The length and width are scaled by a factor 1.5. What is the perimeter of the resulting rectangle?
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A rectangle has a perimeter of 48ft. The length and width are scaled by a factor 1.5. What is the perimeter of the resulting rectangle?

User Zhaown
by
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2 Answers

5 votes
48=(2L+2W)

when increased in scale,
both sides are multiplied by the factor which is 1.5.
72 =1.5(2L+2W)
User Andy Dang
by
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4 votes
Find the sides by figuring out what makes sense I got two 19ft sides and two 5ft sides
So 19*1.5 is 28.5 so now you have two 28.5ft
Then 1.5*5 is 7.5 now you have two 7.5ft sides
28.5+28.5+7.5+7.5=72ft which is the new perimeter
User Tracy Snell
by
8.5k points
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