Homework Help: 8th Grade Algebra

Posted by Erika on Tuesday, March 3, 2009 at 10:30pm.

I need help with these problems:

1) A vending machine takes only nickels and dimes. There are 5 times as many dimes as nickels in the machine. The face value of the coins is $4.40. How many of each coin are in the machine?

2) A vending machine takes only nickels and dimes. At the end of the day there were 3 times as many nickels as dimes and a total of $25. How much of each coin were in the machine?

I know that there should be two equations for each problem. But I just don't know what the equations will be.
Please help.

8th Grade Algebra - bobpursley, Tuesday, March 3, 2009 at 10:42pm
1) D=5N
.10D+.05N=4.40

2) N=3D
you do the value equation as I did above.
8th Grade Algebra - Joy, Wednesday, March 4, 2009 at 12:16am
Thank You.

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