Ws 921 Period Math Test Template (Page 4 of 4) in pdf

Ws 921 Period Math Test Template Page 4

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34)

If p(-3) = 7 and p(2) = -1, find an equation of the line in standard form.

35)

The number of days required to build a bridge is varies inversely to the number of workers. As

the number of workers increases, the number of days required to build would decrease. When

there are 30 workers, the number of days to build the bridge is 425 days. How many workers

are needed if they would like the bridge built in less than one year? (Show work!)

36)

Your weight on Mars varies directly with your weight on Earth. A person weighing 125 lbs on

Earth weighs 47.25 lbs on Mars, since Mars has less gravity. If you weigh 155 lb on Earth, how

much will you weigh on Mars? (Show work!)

37)

The weight of an object varies inversely with the square of the distance from earth's center

(3,960 miles). A man weighs 250 lbs on the surface of the earth. How much would he weigh in

an airplane flying at 30,000 ft? (Show work!)

A cruise ship with a 500-passenger capacity is to be chartered for a transatlantic sail. The cruise will not

take place unless at least 425 passengers are sailing. The cost of the trip is $2200 per passenger, except

that the cruise ship company agrees to reduce everyone’s ticket by $5 for each ticket sold in excess of

425. Let x be the number of tickets sold in excess of 425 and let f(x) be the total income that the

company will receive.

38)

Equation of f(x).

39)

Window on calculator

40)

Maximum income the company will receive?

Ws 921 Period Math Test Template Page 4