Question

Salma's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Salma $5.40 per pound, and type B coffee costs $4.30 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $434 . How many pounds of type A coffee were used?

Answer 1

x=31

Explanation:

Easiest using two variables.

a for type A

b for type B

Part of the description says symbolically .

Total blend quantity was but the value for this quantity of blend not given. Information is given to account for cost of the blend.

Question asks, find the value of a.

b=2a

-

substitute into cost equation.

5.40(x)+4.30(2x)=434

x=31

Hope this helps!