# math

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How would you solve this problem??

A piggy bank contains only nickels and dimes. In all there are 42 coins with a total value of \$3.85. How many nickels are in the piggy bank??

• math -

two equations
: n+d=42
.05n+.10d=3.85 or 5n+10d=385

• math -

Sorry forgot to post the answers, which one would it be??
And can you show how you solved it??

A-3
B-7
C-17
D-35

Thanks

• math -

Ok I got it. Its process of elimination. So it would be B-7.

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