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2 years ago

A car travels at 30 1/5 miles in 2/3 of an hour. What is the average speed, in miles per hour

Mathematics

2 answers:

marin [14]2 years ago

7 0

ANSWER:

45 3/10 mph

decimal form: 45.3 mph

Step-by-step explanation:

30 1/5 /2 = 15 1/10

15 1/10 x 3 = 45 3/10 mph

So hence, your answer is 45 3/10 mph. In decimal format, it can be 45.3

jasenka [17]2 years ago

4 0

Answer:

45.3 miles/h

Step-by-step explanation:

The answer is 45.3 miles/h

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What are the steps to solve for x? x+ax=b

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Answer:

$\displaystyle x = \frac{b}{1 + a}$

General Formulas and Concepts:

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Step-by-step explanation:

Step 1: Define

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$\displaystyle x + ax = b$

Step 2: Solve for x

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3 years ago

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Answer:

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4 years ago

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The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces. We are interested in testing to d

NikAS [45]

Answer:

Option b. should not be rejected

Step-by-step explanation:

We are given that the contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces.

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Null Hypothesis, $H_0$ : $\sigma$ = $\sqrt{0.003}$

Alternate Hypothesis, $H_1$ : $\sigma > \sqrt{0.003}$

The test statistics used here for testing variance is;

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where, s = sample standard deviation = 0.06

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= 30

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