SOLUTION: john has a total of 13 coins in his pocket. of the 13 coins, they are all eithern quarters or dimes. the total value of the coins is $2.50. How many dimes does john have in his poc

Algebra ->  Expressions-with-variables -> SOLUTION: john has a total of 13 coins in his pocket. of the 13 coins, they are all eithern quarters or dimes. the total value of the coins is $2.50. How many dimes does john have in his poc      Log On


   



Question 273900: john has a total of 13 coins in his pocket. of the 13 coins, they are all eithern quarters or dimes. the total value of the coins is $2.50. How many dimes does john have in his pocket?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
10d + 25(13 - d) = 250 ___ solve for d