Question

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Estimating with Percents
Assignment Active
Verifying the Reasonableness of an Answer
A student said that 42% of 78 is 45. Is this answer
reasonable? Explain.

Answer 1

Estimating 42% of 78 to be 45 is not a reasonable answer due to the estimation process.

Step-by-step explanation:

No, the answer is not reasonable. To estimate 42% of 78, we can start by finding 10%, which is equivalent to dividing 78 by 10, resulting in 7.8. Since 42% is more than four times 10%, we can estimate it to be around 4 times 7.8, or 31.2. Therefore, the student's answer of 45 is not a reasonable estimation.

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