Bill scored 78, 63, 81, 86, and 74 on the first five math tests. Round each score to the nearest 10 to find an estimate of the total points Bill scored. A. 320 B. 340 C. 360 D. 380
Question
Bill scored 78, 63, 81, 86, and 74 on the first five math tests. Round each score to the nearest 10 to find an estimate of the total points Bill scored. A. 320 B. 340 C. 360 D. 380
Solution
First, let's round each of Bill's scores to the nearest 10:
- 78 rounds to 80
- 63 rounds to 60
- 81 rounds to 80
- 86 rounds to 90
- 74 rounds to 70
Now, let's add these rounded scores together to estimate the total points Bill scored:
80 + 60 + 80 + 90 + 70 = 380
So, the answer is D. 380.
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