Respuesta :
100
let the number of football cards be x then she has 5x baseball cards
the total cards she has is 120, hence
x + 5x = 120
6x = 120 ( divide both sides by 6 )
x = 20
Allison has 20 football cards and 5 × 20 = 100 baseball cards
b=baseball cards
f=football cards
b=5f she has 5 times as many baseball cards as football cards so we multiply the football cards by 5 to make them equal
b+f=120 there are 120 football and baseball cards total
5f+f = 120 substitute 5f everywhere you see a b
6f = 120 combine like terms
f=20 divide by 6
there are 20 football cards
b=5f
b=5(20)
there are 100 baseball cards