2 years ago

A. Convert 39/7 to a mixed number

Mathematics

1 answer:

saul85 [17]2 years ago

3 0

The answer to this question is A). 39 b). 56

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ella bought some key chains and spent a total of $24 each key chain cost the same whole dollar amount. She bought between 7 and

Gnesinka [82]

She would have had to buy 8 key chains for three dollars a piece.

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2 years ago

Read 2 more answers

WILL GIVE BRAINLIEST

dalvyx [7]

Answer:

D. 8pi>24 cause this is the right answer

7 0

2 years ago

Please help me thanks

Artist 52 [7]

Answer:

11/13

Step-by-step explanation:

4 out of the 26 marbles are blue, meaning that the rest of the 22 marbles are not blue. (26-4=22)

This means that out of the total 26, the chance of not picking a blue marble are 22/26=11/13

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2 years ago

Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t

blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

$\text{Mean}=np\\\\\text{Variance}=np(1-p)$

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

$\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456$

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3 years ago

A car moved at a speed of 90km/hr for 3 minutes.What distance did it cover?

aniked [119]

Answer:

270kilometers

Step-by-step explanation:

To find the distance, all you have to do is the speed · time

In these types of distance time and word problems, you multiply the other factors, 90 and 3, The time(T) · The speed(S)

So. 90(S) · 3(T) = 270(D)

5 0

3 years ago