Question

7. David bought two types of cards. He bought x type of cards that cost $4 andy

type of cards that cost $2. There are a total of 22 cards and they have a total cost of
$26. If he bought 5 of the $4 type of cards, how many of the $2 cards did he buy?
cards

Answer 1

Explanation:

x + y = 22

22 cards = 26

5(4) +y(2) = 26

20+2y = 26

20-20 +2y = 26-20

2y =6

2y/2 = 6/2

y = 3

andy bought 3 cards