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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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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?

User Sebastian Thees
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2 Answers

3 votes

Answer: B - 1.69%

I took the test, trust me.

User LiamV
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3 votes
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%.
User Honghao Z
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7.1k points
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