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Jared bought 7 cans of paint. A can of red paint costs $3.75. A can of black paint costs $2.75. Jared spent $22.25 in all. How many cans of black (b) and how many cans of red (r) did hé buy?

 Apr 11, 2020
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a = # A cans

b = # B cans =  7 - a

 

3.75 a   +   2.75 (7-a)   =  22.25      solve for 'a' , the # A cans    then Bcans =   7-a

 Apr 11, 2020

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