Question 881887: diane has quarters,dimes,and pennies in her pocket. the value of her money is $1.55.there are 4 more dimes than quarters and the number of pennies equals the sum of the number of quarters and dimes.
How many pennies does diane have?
Answer by richwmiller(17219)   (Show Source):
You can put this solution on YOUR website! 1p+5n+25q=155
d=q+4
q+d=p
p-d-q=0
1p+10d+25q=155
0p+d-q=4
1,-1,-1,0
1,10,25,155
0,1,-1,4
1,0,0,10
0,1,0,7
0,0,1,3
10 pennies 7 dimes and 3 quarters
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