Question 87763
B+F=15 B=15-F
1.50B+.50F=15.50
1.50(15-F)+.50F=15.50
22.50-1.5F+.50F=15.50
-F=15.50-22.50
-F=-7
F=7 IS THE NUMBER OF FOOTBALL CARDS.
B+7=15
B=15-7
B=8 NUMBER OF BASEBALL CARDS.
PROOF
1.50*8+.50*7=15.50
12+3.50=15.50
15.50=15.50