3 years ago

How do you solve 8/14 = 2/x

Mathematics

1 answer:

mylen [45]3 years ago

7 0

Answer:

x = 3 1/2

Step-by-step explanation:

8/14 = 2/x

Using cross products

8*x = 14*2

8x = 28

Divide by 8

8x/8 = 28/8

x = 7/2

x = 3 1/2

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Answer: 60.93 < μ < 69.07

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To find the interval, use

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z is z-score related to the % of confidence level

In this case, a 99% confidence interval is 2.576

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Calculating:

$x=\frac{63+69+62+66}{4}$

x = 65

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3 years ago

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4 years ago

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3 years ago

An airplane travels at an average speed of 250 mph for 3 hours.

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3(3y-4)=51 solve for y

Luba_88 [7]

Answer:

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3 years ago

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