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2 years ago

Reduce the rate 210 miles per 3 hours to it's unit rate and write the miles portion of your answer

Mathematics

2 answers:

dlinn [17]2 years ago

8 0

210 divided by 3= 70; 70 is the unit rate

Rus_ich [418]2 years ago

6 0

unit rate would be miles per hour

so divide 210/3 = 70

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a jar contains 30 red, 40 blue, and 50 white buttons. you pick one button at random, find the probability that it is red or blue

abruzzese [7]

Answer:

0.58 rounded to the nearest hundredths

Step-by-step explanation:

30+40+50=120

now add red+blue

30+40=70

70/120

pls mark me brainliest

5 0

3 years ago

Read 2 more answers

A research team conducted a study showing that approximately 20% of all businessmen who wear ties wear them so tightly that they

ch4aika [34]

The probabilities that the at least one tie is too tight is 0.878 and more than two ties are too tight is 0.323 and none are too tight is 0.122 and at least 18 are NOT too tight is 0.67.

According to the statement

We have given that the in a survey showing that the approximately 20% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain.

And we have to find the probability on the some given conditions.

So, For this purpose, we know that the

The probability is the measure of the likelihood of an event to happen. It measures the certainty of the event.

Now,

A. Here n = 20, P = 0.1, And X ≥ 1. Then

The probability that at least one tie is too tight P(≥ 1) = 1 - P(0)

P(≥ 1) = 1 - 0.12

P(≥ 1) = 0.878.

And

B. Here P(≤2) = 0.67 Then

The probability that more than two ties are too tight P(≥ 3) = 1 - P(≤2)

P(≥ 3) = 1 - 0.67

P(≥ 3) = 0.323

And

C. The probability that none are too tight P(0) = 0.122.

And

D. Here n =20, P = 0.1 and X≤2

The probability that at least 18 are NOT too tight P(X≤2) = 0.67.

So, The probabilities that the at least one tie is too tight is 0.878 and more than two ties are too tight is 0.323 and none are too tight is 0.122 and at least 18 are NOT too tight is 0.67.

Learn more about probabilities here

brainly.com/question/24756209

Disclaimer: This question was incomplete. Please find the full content below.

Question:

A research team conducted a study showing that approximately 20% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions. At a board meeting of 15 businessmen, all of whom wear ties, what are the following probabilities

A. What is the probability that at least one tie is too tight?

B. What is the probability that more than two ties are too tight?

C. What is the probability that none are too tight?

D. What is the probability that at least 18 are NOT too tight?

#SPJ4

4 0

1 year ago

Connor and Maria are doing yard work for a neighbor. They make a total of $503.56 . Since Maria works fewer hours than Connor

Evgen [1.6K]

Maria would have made a total of $156

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3 years ago

What is 20% more than 1.50

kkurt [141]

Hey there! Hello!

In order to find a percentage of a number, the easiest thing to do is convert it to a decimal. You would do this by thinking of what part of one your percentage represents, which, in this case, is 0.20 of one. Then, you would multiply this by your number given:

$1.50*0.20=0.30$

When you add 0.30 to 1.50, your answer will be 1.80.

I hope this helped you out! Feel free to ask me any additional questions if you have any. :-)

8 0

3 years ago

David moved from a house that is 89 miles away from his workplace

Bess [88]

Answer: 43%

Step-by-step explanation:

Old house: 89 miles away.

New house: 51 miles away.

Let 100 be 100% of 89, x our new percentage of 51.

$\frac{89}{51} =\frac{100}{x}$