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3 years ago

The winner of the cross-country meet ran 6 miles in 2 hour. What is the average speed per minute?

Mathematics

2 answers:

Andrei [34K]3 years ago

6 0

.05 mi per min. There are 120 min in 2 hours. 6*120=0.05

sukhopar [10]3 years ago

3 0

(60 miles / 2 hours)(1 hour / 60 minutes)
= 60(1) miles / 2(60) minutes
= 60 miles / 120 minutes
= 0.5 miles/minute

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3 years ago

The weights of cars passing over a bridge have a mean of 3,550 pounds and standard deviation of 870 pounds. Assume that the weig

Annette [7]

Answer:

0.24315

Step-by-step explanation:

Using the z score formula to solve this question

z = (x - μ) / σ,

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x = raw score

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3 years ago

Suppose that X is a random variable with mean and variance both equal to 20. What can be said about P{0 ≤ X ≤ 40}.

Dennis_Churaev [7]

Answer:

$P(0 \leq X \40) = \frac{19}{20}$

Step-by-step explanation:

We know that:

$P(|X - 20| < 20) + P(|X - 20| \geq 20) = 1$

$P(0 \leq X \leq 40) = P(0-20 \leq X-20 \leq 40-20) = P(-20 \leq X \leq 20) = P(|X - 20| \leq 20)$

$P(|X - 20| \leq 20) = 1 - P(|X - 20| > 20) = 1 - \frac{20}{20^{2}} = \frac{19}{20}$

$P(0 \leq X \40) = \frac{19}{20}$

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3 years ago

Tape travels through a tape player at a speed of 0.048 meters per second how long is a tape that can play for 30 minuets

sukhopar [10]

Answer:

Step-by-step explanation:

Multiply 30 by 60 to get the time in seconds
Then multiply that by the speed to get distance :)

ANSWER:[30x60]x.048= 86.4 m.

THANX

MARK AS BRAINLEST

6 0

4 years ago