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2 years ago

Divide $180 in the ratio 7:2 [10pts]

Mathematics

1 answer:

Ipatiy [6.2K]2 years ago

6 0

Answer:

hope it helps

Step-by-step explanation:

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Bill is in a class of 15 boys and 35 girls 40 percent of the students in the class take the bus to school how many students do n

GREYUIT [131]

the gender of the kids does not matter so it can be discarded.

you add up how many boys and girls in the class to make a total of 50 kids

your 100% is 50

meaning 40% of 50 is 20

so if 20 kids took the bus to school then 30 did not take the bus.

6 0

3 years ago

A company advertises that its cans of caviar each contain 100 g of their product. A consumer advocacy group doubts this claim, a

Blizzard [7]

Answer:

The value of the test statistic is -3.14.

Step-by-step explanation:

Test statistic:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

A company advertises that its cans of caviar each contain 100 g of their product.

This means that $\mu = 100$

They calculate a sample mean weight of 99 g and a sample standard deviation of 0.9 g. Sample of 8 cans.

This means that $X = 99, \sigma = 0.9, n = 8$

So the test statistic will be given by:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{99 - 100}{\frac{0.9}{\sqrt{8}}}$

$t = -3.14$

The value of the test statistic is -3.14.

8 0

3 years ago

105 students in 3 Classes

podryga [215]

Answer:

Step-by-step explanation:

just divide em

8 0

2 years ago

I need help again don't get it

Dmitry [639]

Answer:

x=45

Step-by-step explanation:

70+65=135

180-135=45

3 0

2 years ago

Read 2 more answers

Classify the following triangle. Check all that apply.

cluponka [151]

Answer:

Right, obtuse, and isosceles. (B, D, E)

6 0

3 years ago