Question

A grocer want to mix two kinds of coffee. One kind sells for $1.15 per pound, and the other sell for $1.40 per pound. He wants to mix a total of 30 pounds and sell for $1.35 per pound. How many pounds of each kind should he use in the new mix? Rozier want to mix two kinds of coffee. One kind sell for $1.15 per pound, and the other sell for $1.40 per pound. He wants to mix a total of 30 pounds and sell for $1.35 per pound. How many pounds of each kind should he use in the new mix

Answer 1

Answer:

24 pounds of 1.35 and 6 pounds of 1.15

Step-by-step explanation:

First you need to be able to write equations:

x: pounds of 1.40 coffee in the mix

y: pounds of 1.15 coffee in the mix

He wants to mix 30 pounds:

x+y= 30

Also the new price will be 1.35:

1.40*x + 1.15*y = 1.35

Replacing y = 30 - x

1.40*x + 1.15(30-x) = 1.35

Solving that you get:

x = 24

y = 6