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3 years ago

What is 3 times 9/100

2 answers:

7 0

Imagine the 9/100 as a whole number. normally 3 times 9 equals 27. Now with this knowledge divide by 100 and congrats, you get 0.27.

Bogdan [553]3 years ago

6 0

0.27, I know 3 times nine does equal 27. So I divide 100 by 27.

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Can someone help me out on this?

Svetach [21]

Answer:

19/20

Step-by-step explanation:

1/5=0.20

hope that makes sense

5 0

3 years ago

Read 2 more answers

The reported average cost per workbook at a large college is $27.50. A professor claims that the actual average cost per workboo

nadezda [96]

Answer:

We conclude that the actual average cost per workbook is higher than $27.50.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $27.50

Sample mean, $\bar{x}$ = $28.90

Sample size, n = 44

Alpha, α = 0.05

Population standard deviation, σ = $5.00

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 27.50\text{ dollars}\\H_A: \mu > 27.50\text{ dollars}$

We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{28.90 - 27.50}{\frac{5.00}{\sqrt{44}} } = 1.8573$

Now, $z_{critical} \text{ at 0.05 level of significance } = 1.64$

Since,

$z_{stat} > z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis.

Thus, we conclude that the actual average cost per workbook is higher than $27.50.

6 0

4 years ago

How to find angles in tranversal

xeze [42]

We have some couples of angles that are equal

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4 years ago

What is the area of the trapezoid?

nasty-shy [4]

Answer:

6.26 yards

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

????? Anyone that can help giving 10 points

katen-ka-za [31]

Step-by-step explanation:

we know that perimeter of triangle is equals to side + side + side

but we can see that the particular triangle is having all the sides equal so it is seen to be equal lateral triangle and formula of equilateral triangle is 3 × sides.....

So,We will take sides common.....

Perimeter of equilateral triangle= 3×Side

3×4.6 cmsq.

13.8cmsq. Answer

6 0

3 years ago