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MTH 209 Week 3... 4 questions...!!!

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1. Rise and run. If the rise is 3/2 and the run is 5, then what is
the ratio of the rise to the run?

2. New product. A taste test with 200 randomly selected
people found that only three of them said that they would
buy a box of new Sweet Wheats cereal. How many boxes
could the manufacturer expect to sell in a country of
280 million people?

3 The golden ratio. The ancient Greeks thought that the
most pleasing shape for a rectangle was one for which the
ratio of the length to the width was approximately 8 to 5,
the golden ratio. If the length of a rectangular painting is
2 ft longer than its width, then for what dimensions would
the length and width have the golden ratio?

4 Force on running shoes. The ratio of the force on the shoe
soles to the weight of a runner is 3 to 1. What force does a
130-pound jogger exert on the soles of her shoes?

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Solution Preview

SOLUTIONS.

1. Rise and run. If the rise is 3/2 and the run is 5, then what is
the ratio of the rise to the run?

Answer --

Ratio = Rise/Run
= (3/2) /5 = 3/2 * 1/5 = 3/10

2. New product. A taste test with 200 randomly selected
people found that only three of them said that they would
buy a box of new Sweet Wheats cereal. How many boxes
could ...

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