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4 years ago

What steps do i take to solve this?

Mathematics

1 answer:

Semenov [28]4 years ago

7 0

Answer:

B; The second answer

Step-by-step explanation:

The question is asking about the associative property of addition. This involves the rearranging of the parenthesis. If you were to solve the given equation, and solve the the answer, then you will get the same answer. In this property, it says that you will get the same result if you were to move/switch the parenthesis from the values; This means that order doesn't matter.

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3 sponges cost $3.90. What is the unit price?

Leokris [45]

Answer:

To find the unit price, we divide the total cost by the number of items.

$3.90 ÷ 3 = $1.30

That means the unit price is $1.30 for each sponge.

7 0

3 years ago

Read 2 more answers

Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8

Luba_88 [7]

Answer: 0.4

Step-by-step explanation:

We know that the standard deviation of the sampling distribution of mean is given by:-

$\sigma_x=\dfrac{\sigma}{\sqrt{n}}$

Given : Standard deviation : $\sigma= 2\text{ minutes}$

Sample size : n= 25

Then, the standard deviation of the sampling distribution of mean times will be :-

$\sigma_x=\dfrac{2}{\sqrt{25}}\\\\\Rightarrow\ \sigma_x=\dfrac{2}{5}=0.4$

Hence, the standard deviation of the sampling distribution of mean times=0.4

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3 years ago

I use 1.48 inches of ribbon to make 4 necklaces. How much ribbon did I use for each necklace?

grin007 [14]

0.37 inches on each necklace or 37/100.

You just need to do 1.48 divided by 4.

Hope this helps !!!
You should go to sleep soon you have school tomorrow!!
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7 0

4 years ago

Last year the sales at a bookstore were 75% fiction books, and 25% nonfiction books.

natulia [17]

It is 15.25 and i know it is right

8 0

4 years ago

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Which represents the inverse of the function f(x) = 4x? h(x) = x + 4 h(x) = x – 4 h(x) = three-quartersx h(x) = one-quarterx

aalyn [17]

Answer:

$\large\boxed{f^{-1}(x)=h(x)=\dfrac{1}{4}x}$

Step-by-step explanation:

$f(x)=4x\to y=4x\\\\\text{exchange}\ x\ \text{to}\ y\to x=4y\\\\\text{solve for}\ y:\\\\4y=x\qquad\text{divide both sides by 4}\\\\\dfrac{4y}{4}=\dfrac{x}{4}\\\\y=\dfrac{1}{4}x$

8 0

4 years ago

Read 2 more answers

What steps do i take to solve this?​

What steps do i take to solve this?