Solve the problem.An auto mechanic finds that the interval time I, in minutes, between scheduled appointments must be related to the total number of minutes T that he is open each day and the number of scheduled oil changes N according to the formula  If he wants to be open 9 hours each day, and feels that he can do each oil change in 20 minutes, how many appointments should he make in one day?

A. 2
B. 29
C. 145
D. 0


Answer: B

Mathematics

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Solve the system of equations.y = x2 - 12x + 36x + y = 12

A. (6, 6) B. (-3, 15), (-8, 20) C. (3, 15), (8, 4) D. (3, 9), (8, 4)

Mathematics

Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.

A. {(-1, 0)}
B.
C. {(5, -4)}
D. ?

Mathematics

Solve.A company that manufactures hospital beds has fixed monthly costs of $210,000. The average cost per bed, C, for the company to manufacture x beds per month is modeled by the formula  C =  How many hospital beds can be manufactured per month at an average cost of $770?

A. 1150 beds B. 875 beds C. 1000 beds D. 1100 beds

Mathematics

Factor. Check by multiplying.6x - 18

A. 6(x - 18) B. 6(x - 3) C. 3(x - 6) D. 3(6 - x)

Mathematics