SOLUTION: Hello i need help with this problem, kelvin has 36 coins, all nickels and quarters. The total value of all these coins is $3.80. How many nickels does he have?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Hello i need help with this problem, kelvin has 36 coins, all nickels and quarters. The total value of all these coins is $3.80. How many nickels does he have?      Log On


   

Question 1026403: Hello i need help with this problem, kelvin has 36 coins, all nickels and quarters. The total value of all these coins is $3.80. How many nickels does he have?
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
q quarters
n nickels
system%28n%2Bq=36%2C5n%2B25q=380%29

system%28n%2Bq=36%2Cn%2B5q=76%29
Eliminate n to find q.