Provide an appropriate response.To divide by a fraction,  the dividend by the  of the divisor.

Fill in the blank(s) with the appropriate word(s).


multiply, reciprocal

Mathematics

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The population of the earth is approximately 6 billion people and is growing at an annual growth rate of 1.9%. Assuming a Malthusian growth model, find the world population in 45 years. Round your answer to the nearest tenth. 

A. 12.4 billion B. 14.8 billion C. 12.1 billion D. 14.1 billion

Mathematics

Solve the problem.Suppose that a sales person observes that if an item is priced at $7 per item then 5 items are sold. If 3 items are sold for $9 per item then find an equation to model the number y of items sold for x dollars per item.

A. y = x - 2 B. y = -x + 12 C. y = x + 12 D. y = -x - 2

Mathematics

Find the perimeter.

A. 9 cm B. 12 cm C. 6 cm D. 18 cm

Mathematics

Write the number as an improper fraction.7

A.
B.
C.
D.

Mathematics