Question

If. david has 19 bills in his wallet worth 125 all fives and tens how many of each bill does he have

Answer 1

T=6 NUMBER OF TEN DOLLAR BILLS.

F=13 NUMBER OF FIVE DOLLAR BILLS.

Explanation:

F+T=19 F=19-T

5F+10T=125 NOW SUBSTITUTE (19-T) FOR F IN THIS EQUATION & SOLVE FOR T

5(19-T)+10T=125

95-5T+10T=125

5T=125-95

5T=30

T=30/5

PROOF

5*13+10*6=125

65+60=125

125=125