SOLUTION: How do I write an equation to help me slove this problem?: Martha has some nickles and dimes worth $6.25. She has three times as many nickles as dimes. How many nickles does she h

Question 8809: How do I write an equation to help me slove this problem?:
Martha has some nickles and dimes worth $6.25. She has three times as many nickles as dimes. How many nickles does she have?
thank you for your help.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Let the number of dimes by "x".
Then number of nickels is "3x"
Value of dimes is 10x cents
Value of nickels is 5(3x)= 15x cents
Dquation:
Value of dimes + Value of nickels = 625 cents
10x + 15x = 625
25x = 625
x = 25 (number of dimes)
3x = 75 (number of nickels)
Cheers,
Stan H.
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