SOLUTION: There are 4 times as many nickels as dimes in a coin bank. The coins have a total value of 600 cents ($6.00). Find the number of nickels.

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Question 518118: There are 4 times as many nickels as dimes in a coin bank. The coins have a total value of 600 cents ($6.00). Find the number of nickels.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
There are 4 times as many nickels as dimes in a coin bank.
n = 4d
The coins have a total value of 600 cents ($6.00).
5n + 10d = 600
Simplify divide by 5
n + 2d = 120
replace n with 4d
4d + 2d = 120
6d = 120
d = 20 dimes
then
n = 4(20)
n = 80 nickels
;
:
Check this 5(80) + 10(20) = 600