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3 years ago

Each coach has 50 seats and there are 1030 supporters. How many coaches are needed to take all the supporters?

1 answer:

6 0

The answer would be to divide 1030 by 50 and you would get 21 coaches not 20 because 50x20=1000 and there are 30 remainder. Therefor, you would need that extra coach with some seats left to spare. so your answer is 21 coaches

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A teacher asked students to classify numbers A and B below

Nookie1986 [14]

Answer:

a or b I think it's correct

Step-by-step explanation:

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3 years ago

The population of current statistics students has ages with mean mu and standard deviation sigma. samples of statistics students

hram777 [196]

Answer: The central limit theorem tells us that when random samples are chosen the results tend to approach a normal distribution.

The basic idea is that the more random samples that you select, the closer you should get to the mean. In most cases, 30 or more samples is regarded as a large enough sample to get close to the mean. Our sample is 48, so we should be close to the mean.

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4 years ago

Solve for x ... please help

Mrac [35]

Answer:

$7x + 49 \degree = 2x + 94\degree \\ 7x - 2x = 94\degree - 49 \degree \\ 5x = 45\degree \\ x = \frac{45}{5} \\ x = 9 \\ check \\ 7(9) + 49 = 112\degree \\ 2(9) + 94 = 112\degree$

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3 years ago

A vine called the mile a-minute weed is known for growing at a very fast rate. It can grow up to 0.25 inches

jek_recluse [69]

Answer:

$\displaystyle =\frac{0.5\text{ ft}}{\text{day}}$

The weed grows at a rate of 0.5 feet per day.

Step-by-step explanation:

The weed grows at a rate of 0.25 inches per hour.

And we want to convert this rate into feet per day.

We have that:

$\displaystyle \frac{0.25\text{ in}}{\text{hr}}$

We knowt that there are 12 inches in one foot.

And since we want to cancel the inches, we can write our conversion factor as ft / 12 in.

We also know that there are 24 hours in one day.

And since we want to cancel the hours, we can write our conversion factor as 24 hr / day.

Hence:

$\displaystyle \frac{0.25\text{ in}}{\text{hr}}\cdot\frac{\text{ft}}{12\text{ in}}\cdot \frac{24\text{ hr}}{\text{day}}$

Multiply and cancel common terms. So:

$\displaystyle =\frac{0.5\text{ ft}}{\text{day}}$

The weed grows at a rate of 0.5 feet per day.

4 0

3 years ago

Which algebraic expression is equivalent-2(4x-5y-5x)

Art [367]

First combine like terms in parentheses. 4x-5x = -1x. Now -1x - 5y should be in the parentheses. Now use the distributive property and multiply both of those terms by 2. The product is -2x -10y so the answer is B.

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4 years ago