To find out how many cups of lemonade each of them will have to sell to earn the same amount of money, we need to set their earnings equal to each other.
1.5x - 35 = x - 20
0.5x = 15
x = 30
So, Ming and Ivy will each have to sell 30 cups of lemonade to earn the same amount of money.
Ming and Ivy each sell lemonade.
Ming spends $35
on supplies and plans to charge $1.50
per cup.
Ivy spends $20
on supplies and plans to charge $1
per cup.
How many cups of lemonade will each of them have to sell to earn the same amount of money?
y = 1.5x - 35
y = x - 20
1 answer