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Rufina [12.5K]
2 years ago
11

A rock climber averages 12 3/5 feet per minute. Write and solve an equation to find how many feet x the rock climber climbs in 3

0 minutes.
Mathematics
1 answer:
sveticcg [70]2 years ago
3 0

Answer:

12 3/5 x 30 is 378 thats how many feet in 30 mins

and the equation:

m = minutes

m(12 3/5)

Step-by-step explanation:

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They told her they charge $45 to install the cable box and $60 each month for the service.
Nady [450]
The answer is 2,700
This is because




60
x45
------------
300
+2400
--------------


Or Use Partial Products

60. 0. 1.0x40
___________. 2.60x40
I2400 I. 30. I.
40I. I. I. 3.0x40
|---------I----------I. 4.0x5
5I. 0. I. 0. I
l____ I______I
I hope this helped because this was a lot and I mean a lot of work


3 0
3 years ago
Question 6 The mineral content of a particular brand of supplement pills is normally distributed with mean 490 mg and variance o
AysviL [449]

Answer:

0.3085 = 30.85% probability that a randomly selected pill contains at least 500 mg of minerals

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean 490 mg and variance of 400.

This means that \mu = 490, \sigma = \sqrt{400} = 20

What is the probability that a randomly selected pill contains at least 500 mg of minerals?

This is 1 subtracted by the p-value of Z when X = 500. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{500 - 490}{20}

Z = 0.5

Z = 0.5 has a p-value of 0.6915.

1 - 0.6915 = 0.3085

0.3085 = 30.85% probability that a randomly selected pill contains at least 500 mg of minerals

4 0
3 years ago
PLEASE HELP!!!!!!!! :)
Rudiy27

Hello from MrBillDoesMath!

Answer:  Two solutions

Discussion:

Based on the graph provided the curves intersect at two point

Thank you,

MrB

6 0
3 years ago
A famous equation for determining the
e-lub [12.9K]

Answer:

d=ut+1/2at^2

Step-by-step explanation:

by determining the distance will travel

d=sum of the product of its initial velocity with time(ut+) and product of half the acceleration with squared time(1/2at^2).

By putting them together, we'll have

d=ut+1/2at^2

8 0
3 years ago
A clock with an hour hand that is 18 inches long is hanging on a wall. At noon, the vertical distance between the tip of the hou
bearhunter [10]

Answer:Check the attached

Step-by-step explanation:

7 0
3 years ago
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