Question

Salem starts out with 50 baseball cards and plans to buy 5 more per month.

Dated starts out with 90 baseball cards and plans to sell 5 per month.
Write a system of equations to represent this situation

Answer 1

Salem = 50 + 5x

Dated = 90 + 5x

Explanation:

The 50 baseball cards Salem starts with and the 90 Dated starts with is fixed and the 5 they plan to buy per month is variable. As the months go by, the number of baseball cards increases by 5.

After 12 months, the number of baseball cards

Salem would have = 50 + 5(5) = 75

Dated would have = 90 + 5(5) = 115

Let x represent the number of months, so we would have the following equations :

50 + 5x

90 + 5x