Multiple Choice
Solve the problem.
-A merchant has coffee worth $20 a pound that she wishes to mix with 80 pounds of coffee worth $80 a pound to get a mixture that can be sold for $60 a pound. How many pounds of the $20 coffee should be used?
A) 40 lb
B) 60 lb
C) 20 lb
D) 120 lb
Correct Answer:

Verified
Correct Answer:
Verified
Q105: Choose the ordered pair which is a
Q106: Solve.<br>-The sum of three numbers is -6.
Q107: Choose the ordered pair which is a
Q108: Classify the system as consistent or inconsistent,
Q109: Solve graphically.<br>-<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8306/.jpg" alt="Solve graphically. -
Q111: Classify the system as consistent or inconsistent,
Q112: Solve.<br>-A cabin cruiser travels 20 miles in
Q113: Solve.<br>-A cruise boat travels 96 miles downstream
Q114: Classify the system as consistent or inconsistent,
Q115: Solve using the substitution method.<br>-y = 2x