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Answer: 173
Explanation:
X+y = 173
5.2X + 9.9y = 1270.9
5.2x + 9.9(173-x) = 1270.9
5.2x + 1712.7 - 9.9x = 1270.9
-4.7x = -441.8
x =94
y = 79
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