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3 years ago

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An exterminator must treat the perimeter of a house for insects. If the house is 90 feet long and 30 feet wide, what is the tota

l footage treated?

1 answer:

Anika [276]3 years ago

4 0

Perimeter = 2l + 2w
perimeter = 2(90) + 2(30)
perimeter= 180+60
perimeter= 240 ft

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The change in quantities can be represented as percentage

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The percentage decrease is calculated as:

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Substitute known values

$\mathbf{\%Decrease = \frac{14500- 22250}{22250} \times 100\%}$

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The negative sign implies that, the change represents a decrement.

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