CHARLENE HAS SOME $2 AND $5 NOTES,WHICH ARE WORTH $1360.THERE ARE 500 NOTES ALTOGETHER.HOW MANY $2 NOTES DOES CHARLENE HAVE?
Let x be the number of $2 notes Charlene have.
2x + 5(500-x)=1360
2x + 2500 - 5x = 1360
-3x = -1140
x = 380
Charlene have 380 $2 notes.
