Type A coffee costs Bill 4.30

per pound, and type B coffee costs 5.70

per pound. This month, Bill made 168

pounds of the blend, for a total cost of 855.40

. How many pounds of type B coffee did he use?

Question

Mathematics

Gary Davila

4 April, 12:32

Type A coffee costs Bill 4.30

per pound, and type B coffee costs 5.70

per pound. This month, Bill made 168

pounds of the blend, for a total cost of 855.40

. How many pounds of type B coffee did he use?

+2

Answers (1)

Know the Answer?

Janae Ellison · Answer 1

4.30A+5.70B=855.40

A+B=168

A=168-B

substitute

4.30 (168-B) + 5.70B=855.40

4.30*168-4.30B+5.70B=855.40

1.40B = 855-4.30*168

1.40B=132.60

B=132.60/1.40 = 94.7 pounds≈95 pouds

Type A coffee costs Bill 4.30per pound, and type B coffee costs 5.70per pound. This month, Bill made 168pounds of the blend, for a total cost of 855.40. How many pounds of type B coffee did he use?

Type A coffee costs Bill 4.30

per pound, and type B coffee costs 5.70

per pound. This month, Bill made 168

pounds of the blend, for a total cost of 855.40

. How many pounds of type B coffee did he use?