Question

One day at a baseball park, Taylor bought 3 sandwiches and 2 drinks to share with a friend. The total cost was $19. On another day at the baseball park, Taylor bought 2 sandwiches and 1 drink for $12. What is the total cost of 1 sandwich and 2 drinks at the baseball park?

Answer 1

$9.00

Explanation:

Let s = the cost for a sandwich.

Let d = the cost of a drink

3s + 2d = 19 3s + 2d = 19

2s + 1d = 12 → multiply this by -2 and add to the first equation -4s -2d = -24

-s = -5

-s = -5 Divide both sides by -4

s = 5

A sandwich costs $5.00.

Substitute 5 for s

2s + 1d = 12

2(5) + 1d = 12

10 + 1d = 12 Subtract 10 from both sides

1d = 2

A drink costs $2.00

The cost of 1 sandwich and 2 drinks would be

5 + 2(2)

5 + 4 = 9

It will cost $9.00 for 1 sandwich and 2 drinks.

Helping in the name of Jesus.