Question

Last week, Rio bought 11 shirts and 11 hats for a total of $154.

Today, Rio bought 11 shirts and 20 hats for a total of $181.
Assuming neither item has changed in price, what is the cost of a shirt in dollars?

Answer 1

shirt = $11 ; hat = $3

Explanation:

shirt = s

hats = h

11s + 11h = 154 ...(1)

11s + 20h =181 ....(2)

(2)-(1) : 9h = 27

h= 27/9

h = 3

11s + 11h = 154

11s + 11(3) = 154

11s = 154 - 33

11s = 121

s=11