Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have?
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no i'm asking what is dime and what is quarter..
we don't have such currency here :(
oh quarter is 25cents and a dime is 10
anyway, let x be the no of dimes and y be the no of quarters
x+y =46 => x = 46-y -(1)
0.1x+0.25y = 7 -(2)
put (1) into (2)
0.1( 46-y)+0.25y = 7
4.6 -0.1y +0.25 = 7
0.15y = 2.4
therefore x=46-16 =30
therefore there are 30 dimes and 16 quarters
Thank you so much.. yeah i thought it was 30 dimes but wasn't 100% sure