SOLUTION: David emptied his pockets and found that he had 30 coins worth $4.80. He only had quarters and dimes. How do you solve this?

Algebra ->  Customizable Word Problem Solvers  -> Coins -> SOLUTION: David emptied his pockets and found that he had 30 coins worth $4.80. He only had quarters and dimes. How do you solve this?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 676578: David emptied his pockets and found that he had 30 coins worth $4.80. He only had quarters and dimes. How do you solve this?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

David emptied his pockets and found that he had 30 coins worth $4.80. 

He only had highlight%28x%29quarters and highlight%2830-x%29dimes.

CENTS makes sense

 25x + 10(30-x) = 480¢ 

      15x = 180

        x = 12, the number of Quarters.  18 Dimes