Your piggy bank has a total of 41 coins in it; some are dimes and some are nickels. If you have a total of $3.45, how many nickels do you have?

Question

anonymous · Answer

13 nickles?

anonymous · Answer

why you asking me?????

anonymous · Answer

Why not?

anonymous · Answer

@UsukiDoll

anonymous · Answer

is it 13?

destinymasha · Answer

1] find out how much a nickel is equal to

jdoe0001 · Answer

d = dimes              n = nickels
10c = 1 dime         5c = 1 nickel

$3.45 = (10) dimes + (5) nickels

$\bf 3.45 = 10d + 5n$

there are a total of 41 dimes and nickels
so    $\bf d+n=41$

jdoe0001 · Answer

solve the system of equations by susbtitution

jdoe0001 · Answer

hmmm ... actaully the 1st equation should be in pennies... .thus $\bf 345=10d+5n\ d+n=41$

jdoe0001 · Answer

say... solve the 2nd equation... by "n"... how  does it look?