9
practice testMultiple Choice

Practice Test

Question 9 • Grade 7 Mathematics

Antonio predicted that he would sell 60 rugs, but he actually sold 82 rugs. Which expression would find the percent error? Use the given table to help answer the question. Percent Error Item Approximate value Exact value Error Absolute error Ratio Percent error Rugs 60 82 negative 22 22

Answer
A
22 over 82 times 100
B
22 over 60
C
22 over 82
D
22 over 60 times 100

Explanation

Percent error is the absolute error divided by the exact value, then multiplied by 100. Here, the absolute error is 22 rugs and the exact value is 82 rugs, so the expression is 22 ÷ 82 × 100. Choice A, “22 over 82 times 100,” gives the percent error.

AI-written and checked against the verified answer.

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