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a local charity held a crafts fair selling donated, handmade items. total proceeds from the sale were 1380. a total of 72 items were sold, some at 15 each and the rest at 25 each
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Mar 27, 2017
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a local charity held a crafts fair selling donated, handmade items. total proceeds from the sale were 1380. a total of 72 items were sold, some at 15 each and the rest at 25 each
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x = 25 dollar items and y = 15 dollar items
x + y = 72....x = 72 - y
25x + 15y = 1380
25(72 - y) + 15y = 1380
1800 - 25y + 15y = 1380
-25y + 15y = 1380 - 1800
-10y = - 420
y = -420/-10
y = 42
x + y = 72
x + 42 = 72
x = 72 - 42
x = 30
so they sold 30 twenty five dollar items (x) and 42 fifteen dollar items (y)
Priya Narayanan
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Apr 2, 2017
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Priya Narayanan
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