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April bought some sports drinks and slices of pizza for her friends. She bought 3 more sports drinks than slices of pizza. if her total order was $21.25, how many sports drinks did she purchase?
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Given : April bought some sports drinks and slices of pizza for her friends. She bought 3 more sports drinks than slices of pizza. her total order was 21.25,
one slice of pizza cost 2.25 and one sport drink cost 1.25
To Find : how many sports drinks did she purchase
Solution:
Let say sports drinks bought = x
then slices of pizza. = x - 3
as She bought 3 more sports drinks than slices of pizza
Cost of sports drink = 1.25x
cost of pizza = 2.25 ( x - 3) = 2.25x - 6.75
Total Cost = 1.25x + 2.25 - 6.75
= 3.5x - 6.75
3.5x - 6.75 = 21.25,
=> 3.5x = 28
=> x = 8
Hence she purchased 8 sport drinks
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