If the mean of five numbers is 7, what is their sum?

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Master the Certify Teacher EC-6 (391) Mathematics Test. Use flashcards and multiple choice questions with explanations. Boost your confidence and excel in your exam!

Multiple Choice

If the mean of five numbers is 7, what is their sum?

Explanation:
Knowing the mean and how many numbers there are lets you find the total sum. The mean is the sum of all values divided by how many values, so the sum equals the mean times the count. Here, the mean is 7 and there are five numbers, so the sum is 7 × 5 = 35. Quick check: 35 divided by 5 equals 7, which matches the given mean.

Knowing the mean and how many numbers there are lets you find the total sum. The mean is the sum of all values divided by how many values, so the sum equals the mean times the count. Here, the mean is 7 and there are five numbers, so the sum is 7 × 5 = 35. Quick check: 35 divided by 5 equals 7, which matches the given mean.

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