Ross needs to buy a countertop for a laundry room. He calculated the area to be 12 square feet. The actual area is 11.8 square feet. What is Ross's percentage error?

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asked Nov 28, 2015 57.9k views

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Honghao Z · Answer 1 · 2015-12-02T04:42:43+0000

The formula for percentage error is:

$\sfApproximate ~-~ Actual$

Ross got the approximate area as 12, while the actual area was 11.8. So, let's plug it in to the formula.

$\sf)/($

Multiply 0.0169 by 100 to make it into a percent.

0.0169 * 100 = 1.69%

Ross's percentage error is 1.69%.

Ross needs to buy a countertop for a laundry room. He calculated the area to be 12 square feet. The actual area is 11.8 square feet. What is Ross's percentage error?

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