Question

In his box, Mark has 5 less $1 coins than three times the number of $2 coins. If the crate contains a total of $85, how many $1 coins does it have?​

Answer 1

49 $1 coins

Explanation:

x is the number of $2 coins

2x + 1(3x - 5) = 85

5x - 5 = 85

5x = 90

x = 18

So there are 49 $1 coins