Question 1156993
# of pennies = p
# of dimes = 2p
# of quarters = 2p + 13
<pr>
p + 10(2p) + 25(2p + 13) = 3165
<pr>
p + 20p + 50p + 325 = 3165
<pr>
71p + 325 = 3165
<pr>
71p = 2840
<pr>
p = 40
<pr>
# of pennies = p = <b>40</b>
# of dimes = 2p = <b>80</b>
# of quarters = 2p + 13 = <b>93</b>
<pr>
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<pr>
Check it:
<pr>
40 pennies = $0.40
80 dimes = $8.00
93 quarters = $23.25
<pr>
$0.40 + $8.00 + $23.25 = $31.65