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3 years ago

Solve using proportions please

Mathematics

1 answer:

MArishka [77]3 years ago

4 0

Answer:

39.372 meters

Step-by-step explanation:

1 / 3.281 = 12 / m

------------------------

1: 1 meter

3.281: how many feet is in 1 meter

12: 12 feet

m: meters (unknown)

Cross multiply to find m (meters).

12(3.281) = m

39.372 = m

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We have to find the value of x such that the probability is 0.03.

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$P( X > x) = P( z > \displaystyle\frac{x - 385}{110})=0.03$

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$\displaystyle\frac{x - 385}{110} = 2.748\\x = 687.28$

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