SOLUTION: Mary has $2.85 in dimes and nickels. If she has 15 more dimes than nickels, how many of each coin does she have?

Algebra ->  Customizable Word Problem Solvers  -> Coins -> SOLUTION: Mary has $2.85 in dimes and nickels. If she has 15 more dimes than nickels, how many of each coin does she have?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 741340: Mary has $2.85 in dimes and nickels. If she has 15 more dimes than nickels, how many of each coin does she have?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Mary has $2.85 in dimes and nickels. If she has 15 more dimes than nickels, how many of each coin does she have?
-----
Value Equation: 5n + 10d = 285 cents
Quantity Equation: d = n+15
------------
5n + 10(n+15) = 285
15n + 150 = 285
15n = 135
n = 9
=============
Cheers,
Stan H.
-------------