Problema Solution
A store Sella regular coffee for $4 a pound and gourmet coffee for $7 a pound. The shopkeeper wants to mix some regular coffee with 40lb of the gourmet coffee to make a blend worth $5 a pound. Write and solve an equasion to find the number of pounds of regular coffee to use.
Answer provided by our tutors
let
x = lbs of the regular coffee needed for the blend
4x + 7*40 = 5(x + 40)
by solving we find:
x = 80 lbs
click here to see the step by step solution of the equation:
80 pounds of regular coffee should be used for the blend.