Problema Solution
Mai's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Mai $5.20 per pound, and type B coffee costs $4.05 per pound. This month, Mai made 131 pounds of the blend, for a total cost of $622.55 . How many pounds of type A coffee did she use?
Answer provided by our tutors
let
a = lbs of the type A coffee
b = lbs of the type B coffee
this month, Mai made 131 pounds of the blend
a + b = 131
for a total cost of $622.55
5.20a + 4.05b = 622.55
by solving the system of equations
a + b = 131
5.20a + 4.05b = 622.55
we find
a = 80 lbs
b = 51 lbs
click here to see the step by step solution of the system of equations
She used 80 pounds of type A coffee.