Problema Solution
Billy bought 24 baseball cards for $50 one type cost $1 per card, and the other type cost $3 per card. Find the number of each card that Billy bought
Answer provided by our tutors
let
x = the number of $1 per card basketball cards
y = the number of $3 per card basketball cards
Billy bought 24 baseball cards
x + y = 24
hey paid total of $50 for the cards
1*x + 3y = 50
by solving the system of equations
x + y = 24
1*x + 3y = 50
we find
x = 11 cards
y = 13 cards
click here to see the step by step solution of the system of equations
Billy bought 11 cards of the $1 per card type and 13 cards of the $3 per cards type.