SOLUTION: Marco had 150 coins,all nickels and dimes. He has 12 more dimes than nickels. How many nickels and how many dimes does he have ?
Algebra ->
Test
-> SOLUTION: Marco had 150 coins,all nickels and dimes. He has 12 more dimes than nickels. How many nickels and how many dimes does he have ?
Log On
Question 424034: Marco had 150 coins,all nickels and dimes. He has 12 more dimes than nickels. How many nickels and how many dimes does he have ? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of dimes
Let = number of nickels
given:
(1)
(2)
------------------------
Substitute (2) into (1)
(1)
(1)
(1)
and, since
(2)
He has 81 dimes and 69 nickels
