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Samantha bought 26 total fish. Each goldfish cost 3 dollars and each guppy costs 4 dollars. She spent 86 dollars total. How many guppies did she buy?

 Feb 28, 2021
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f = # goldfish        price =  3f

g = guppies = 26-f      price =    4(26-f)      summed =  86  dollars

 

3f           +            4 ( 26-f)         =  $ 86     solve for 'f'  the number of goldfish  

                                                                                                 then guppies = 26-f

 Feb 28, 2021
edited by ElectricPavlov  Feb 28, 2021

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