math
posted by rebecca black on .
aviva has a total of 52 coins, all of which are either dimes or nickels. The total value of the coins is $4.05. Find the number of each type of coin.

10x + 5(52x) = 405
x = 29
so, 29 dimes, 23 nickels
posted by rebecca black on .
aviva has a total of 52 coins, all of which are either dimes or nickels. The total value of the coins is $4.05. Find the number of each type of coin.
10x + 5(52x) = 405
x = 29
so, 29 dimes, 23 nickels