X=15 and Y=?
X=30 and Y=6
By rule of three
15x6/30 = 3
The answer is Y=3
The answer is 615.4
Hope this helps :)
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Luis spent $9.50, in which:
Candy (y) = $1.25
Chips (x) = $0.50
$9.50 = 1.25y + 0.50x
Luis bought 10 snacks in all
10 = x + y
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You're answer:
x + y = 10
1.25y + 0.50x = 9.50
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hope this helps