Solve the problem.Suppose an animal feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 9 lb of mineral ash. Each 100-lb sack of soybean meal costs $20 and contains 50 lb of protein, 10 lb of fat, and 8 lb of mineral ash. Each 100-lb sack of oats costs $10 and contains 20 lb of protein, 5 lb of fat, and 1 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost? Fractional sacks are allowed.
A. 2 sacks of soybeans and 0 sacks of oats
B. 0 sacks of soybeans and 4 sacks of oats
C. 
sacks of soybeans and 
sacks of oats
D. 
sacks of soybeans and 
sacks of oats
Answer: A
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Solve the problem.A company knows that the unit cost C and the unit revenue R from the production and sale of x units are related by 
Find the rate of change of unit revenue when the unit cost is changing by 
and the unit revenue is $4000.
A. $315.00/unit B. $292.80/unit C. $280.00/unit D. $270.60/unit
Which situation comes closest to the signal-in-noise interpretation of average?
a. John has 8 action figures. Tammy has 12. John has 10. Pam has 11. Summarize the number of action figures per person using one number. b. When a stock fell during the recession, a group of 20 investors lost a total of $20,000. What is each investor's fair share of the loss? c. The grades for Ms. Jones' class on the last exam were: 50, 68, 89, 100, 56, 72, 59, 88, 74, 76, 82. What was the typical score for a student in her class? d. A scale was used to weigh a fish. Because the fish flipped around while being weighed, the scale gave a different reading each time it was used: 6.4, 5.7, 8.2, 6.2, 6.5, 6.0, 6.2. Estimate the actual weight of the fish.
Write the rate as a fraction in simplest form.There are 15 cars for 45 people.
A. 
B. 
C. 
D. 
Multiply.
A. q2 + 1
B. q2 + 
q + 1
C. 2q2 + 
q + 1
D. q2 + 
q + 1