Question

Haley and nicole stopped at the school bookstore for extra supplies. Haley bought 8 pencils and 3 folders and spent 10.39.Nicloe bought 5 pencils and 4 folders and spent 10.51. How much does a floder cost

Answer 1

The answer to your question is: a folder cost $1.92

Explanation:

Haley bought 8 pencils and 3 folders spent 10.39

Nicole bought 5 pencils and 4 folders spent 10.51

Folder = ?

pencil = x

folder = y

Equations

8x + 3 y = 10.39 (1)

5x + 4 y = 10.51 (2)

Solve these equations

4 ( 8x + 3 y = 10.39 ) 32x + 12 y = 41.46

-3 ( 5x + 4 y = 10.51) -15x - 12y =-31.53

17 x 0 = 9.93

x = 9.93 / 17

x = 0.58 pencil

8(0.58) + 3y = 10.39

4.64 + 3y = 10.39

3y = 10.39 - 4.64

3y = 5.75

y = 5.75 / 3

y = 1.92 folder