Question

*easy question* How many doses does a cookie cost?
How much does a brown?

Answer 1

A cookie costs 1 dollar. A brownie costs 2 dollars.

Explanation:

C = Cookie B = Brownie

Your two equations:

3c + 2b =7

5c + 4b = 13

Make both equations have an equivalent section:

2(3c + 2b = 7)

6c + 4b = 14

5c + 4b = 13

c = 1

To find B's value:

3c + 2b = 7

3 x 1 + 2b = 7

3 + 2b = 7

2b =4

b =2

Hope this helps.