saniyajackson65 saniyajackson65
  • 13-01-2024
  • Mathematics
contestada

Martha's cookie stand sold 7 cookies and 2 lemonades for $6.50, then 10 cookies and 3 lemonade for $9.50. What is the cost of each?

Respuesta :

n1narr5459 n1narr5459
  • 13-01-2024

Answer:

Step-by-step explanation:

7C + 2L=$6.50

10C + 3L=$9.50

3C + L = $3

6C + 2L = $6

7C + 2L=$6.50

C = $0.50

10(0.50) + 3L = $9.50

5 + 3L =$9.50

3L = $4.50

4.50/3=$1.50

L=$1.50

Answer Link
newrymarisa56
newrymarisa56 newrymarisa56
  • 13-01-2024

Answer:

Cookies = $0.5

Lemonade = $1.5

Step-by-step explanation:

6.5 = 7x + 2y

9.5 = 10x + 3y

-10(6.5 = 7x × 2y)

17(9.5 = 10x +3y)

-65 = -70x -20y

+66.5 = 70x 21y

1.5 = 1y

1.5 = y

6.5 = 7x + 2(1.5)

6.5 = 7x + 3

3.5 = 7x

0.5 = x

Answer Link

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