Question

Jim's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jim



$

5.70
per pound, and type B coffee costs



$

4.05
per pound. This month's blend used four times as many pounds of type B coffee as type A, for a total cost of



$

613.20
. How many pounds of type A coffee were used?

Answer 1

@YZY please help :(

Answer 2

5.7A + 4.05B = 613.2

Answer 3

B/A=4

Answer 4

Yes, that's a good idea.

Answer 5

Use those two equations to solve

Answer 6

So you add A and B, then divide by 4, right?

Answer 7

uhh, I don't know what you mean

Answer 8

Isolate either A or B from the second equation

Answer 9

Never mind. I got confused.

Answer 10

B=4A

Answer 11

now plug in 4A for B in the first equation

Answer 12

thanks @YZY im sorry to bother you can you help me with one more

Answer 13

yeah