Question

a restaurant has one type of lemonade that is 30% sugar and another that is 10% sugar. How many gallons of eachbtype does the restraint need to make 4 gallons of lemonade mixture that is 15% sugar?

Answer 1

x + y = 4

0.3x + 0.1 y = 0.15*4

Solve the system. The solution is: x = 1 ∧ y = 3

1 gallons with 30% sugar and 3 gallons with 10% sugar does the restaurant need.