Question

You sell lemonade for $2 per cup and orange juice for $3 per cup. you sell a total of 100 cups for $240. write and solve a system of linear equations to find the number of cups and the number of lemonade and the number of cups of orange juice you sold. answer

Answer 1

-2(L + OJ = 100)
2L + 3OJ = 240

-2L + -2OJ = -200
2L + 3OJ = 240

1OJ = 40

L + OJ = 100
L + 40 = 100
L = 60

Therefore : 60 cups of lemonade and 40 cups of orange juice.