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The mean weight of the packages Joan shipped was 2.5 pounds. If Joan mailed four packages and three of them had weights of 1.7, 3.2, and 2.8 pounds, then what did the other package weigh? 2.3 2.8 3.3
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The mean weight of the packages Joan shipped was 2.5 pounds. If Joan mailed four packages and three of them had weights of 1.7, 3.2, and 2.8 pounds, then what did the other package weigh?

2.3
2.8
3.3

User JSuar
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1 Answer

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(1.7 + 3.2 + 2.8 + x) / 4 = 2.5
(7.7 + x) / 4 = 2.5.....multiply both sides by 4, eliminating the /4
7.7 + x = 2.5 * 4
7.7 + x = 10
x = 10 - 7.7
x = 2.3 <====
User Melebius
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8.4k points
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