Kuri spent a total of $68 on trading cards. His collection contains two types of cards. A pack of trading card A cost $4, and a

Question

2 years ago

7

Kuri spent a total of $68 on trading cards. His collection contains two types of cards. A pack of trading card A cost $4, and a

pack of trading card B cost $7. How many packs of each type of trading card were purchased if the total number of packs is 11

Mathematics

2 answers:

devlian [24] · Answer 1 · 2022-04-13T19:41:36+03:00

devlian [24]2 years ago

8 0

4a+7b=68 go to mathpapa

Gre4nikov [31] · Answer 2 · 2022-04-13T20:50:02+03:00

Gre4nikov [31]2 years ago

7 0

Let x = the number of packs for trading card A
Let y = the number of packs for trading card B

x + y = 11
4x + 7y = 68

Try and solve for y first
x = 11 - y
Substitute
4(11 - y) + y =68
Y =8 then x= 3