Problema Solution
A pair of socks and a shirt cost $40. The cost of the shirt was $5 more than four times the cost of the socks. What did the socks cost?
Answer provided by our tutors
let
x = the cost of the shirt
y = the cost of the socks
a pair of socks and a shirt cost $40
x + y = 40
the cost of the shirt was $5 more than four times the cost of the socks
x = 5 + 4y
by solving the system of equations
x + y = 40
x = 5 + 4y
we find
y = $7
click here to see the step by step solution of the system of equations
the socks cost was $7.