Use the problem-solving strategy for applications of linear equations to solve the application problem.The speed of a stream is 4 mph. If a boat travels  downstream in the same time that it takes to travel  upstream, what is the speed of the boat in still water?

A. 14 mph
B. 12 mph
C. 8 mph
D. 15 mph


Answer: B

Mathematics

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Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.

A. f = , local minimum
B.   saddle point
C. f(6, 6) = 1,080, local maximum
D. f = , local minimum

Mathematics

Find the roots of the given equation by inspection.x(3x + 5)(x2 - 64)

A. -8, - , 0, 8
B. -8, - , 8
C. - , 0, 8
D. -8, 0, 8

Mathematics

Multiply and simplify. Write the answer as a mixed number if possible.5 ? 1

A. 23
B. 3
C. 7
D. 7

Mathematics

Find the gross earnings.Gross sales: $5148Sales returns: $494Net quota: $1007Commission rate: 9%

A. $418.86 B. $328.23 C. $372.69 D. $329.13

Mathematics