Question

Salma's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs salma $5.95 per pound, and type b coffee costs $4.45 per pound. this month's blend used twice as many pounds of type b coffee as type a, for a total cost of $490.05 . how many pounds of type a coffee were used?

Answer 1

x=33

Explanation:

5.95(x)+4.45(2x)=490.05

x=33

Answer 2

For this case, the first thing we must do is define variables.
We have then:
x = pounds of type a coffee
y = pounds of type b coffee
We now write the system of equations:
5.95x + 4.45y = 490.05
y = 2x
Solving the system of equations we have:
x = 33
y = 66
Answer:
were used 33 pounds of type a coffee