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A piggy bank contains six times as many quarters as dimes. If the total amount of moneyis $28.80, how many quarters and dimes are in the piggy bank?

 Mar 18, 2021
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Let  the number of dimes =  x    and the number of quarters = 6x

 

So

 

Value of a dime * numbereof them  + Value of a quarter * number of them  = Total value in the  bank

 

10x   + (6x) (25)  =  2880    simplify

 

10x  +  150x  = 2880

 

160x  = 2880

 

x =  2880 /  160   =   18   dimes

 

6x=  6 (18) =  108  quarters

 

 

cool cool cool

 Mar 18, 2021

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