Question

Emily went to the store and bought five packages of cookies and 1 gallon of milk and spent $17 Emma went to the same store and bought 10 packages of cookies and 3 gallons of milk and spent $36 how much does each package of cookies cost 

Answer 1

Let's use a system of equations to solve this problem.

Let c be the cost of one package of cookies. Then we can write two equations based on the given information:

5c + 1m = 17 (where m is the cost of one gallon of milk)

10c + 3m = 36

We want to solve for c, so let's eliminate m by multiplying the first equation by 3 and subtracting it from the second equation:

10c + 3m = 36

-(15c + 3m = 51)

-5c = -15

Simplifying, we get:

c = 3

Therefore, each package of cookies costs $3.