algebra
posted by Rose .
Cedric cashed a $125 check at the bank. The teller gave Cedric his money in $5 and $10 bills only. If the teller gave Cedric twice as many $10 bills as $5 bills, how many of each type did cedric receive?

number of fives  x
number of tens  2x
5x + 10(2x) = 125
25x = 125
x = 5
he was given 5 fives and 10 tens