Answer:
$4.32
Step-by-step explanation:
8% can be represented as 1.08
2 x 1.08 = 2.16
2 x 1.08 x 1.08 = 2.33
2 x 1.08 x 1.08 x 1.08 = 2.52
etc. all the way up to 10
Erica used 50 pounds of type B coffee
Let the number of pounds of type A coffee be A
Let the number of pounds of type B coffee be B
Total number of pounds = 123
A + B = 123.........................................(1)
Cost of 1 pound of type A coffee = $5.95
Cost of 1 pound of type B coffee = $4.40
Total cost = $654.35
5.95A + 4.40B = 654.35..........................(2)
Make A the subject of the formula in equation (1)
A = 123 - B........................(3)
Substitute equation (3) into equation (2)
5.95(123 - B) + 4.40B = 654.35
731.85 - 5.95B + 4.40B = 654.35
5.95B - 4.40B = 731.85 - 654.35
1.55B = 77.5
B = 77.5/1.55
B = 50
Erica used 50 pounds of type B coffee
Learn more on system of equations here here: brainly.com/question/13729904
The answer is a because when u solve both problems the answer comes out as a .
Answer:
3
Step-by-step explanation:
divide 12 by 4 and then multiply that number by 1
