Solve the problem.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 15 hr; 30 hr
B. 12.5 hr; 27.5 hr
C. 10 hr; 25 hr
D. 25 hr; 40 hr
Answer: A
Mathematics
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What will be an ideal response?
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Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. What is the limiting size of the population that becomes ill?
A. 1,700 people B. 51,000 people C. 102,000 people D. 1,699 people
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Given the magnitude of the horizontal and vertical vector components 
and 
of vector V, find the magnitude of V.
?
?
A. ?
B. ?
C. ?
D. 
E. ?
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Divide. Write the answer as a mixed number as needed.
÷ 
A. 
B. 
C. 
D. 32
Mathematics