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3 years ago

What's the numerator for the following rational expression? 4/n + 8/n=?/n

Mathematics

1 answer:

dimaraw [331]3 years ago

4 0

Answer:

$\frac{12}{n}$

Step-by-step explanation:

Since the numerator are like terms so you just add them together and leave the denominator the same.

$\frac{4}{n} +\frac{8}{n} = \frac{12}{n}$

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Find the perimeter of the right triangle. If necessary, round to the nearest tenth.

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Answer:

a. 12 yd

Step-by-step explanation:

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3 years ago

There are 45 questions on your math exam. You answered 810 of them correctly. How many questions did you answer correctly?

notka56 [123]

Answer: 11- is B

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3 years ago

Read 2 more answers

Amber can peel 10 1/2 potatoes in 1/3 of an hour. What is her unite rate

Alexxx [7]

Given that:

- Amber can peel this amount of potatoes:

$10\frac{1}{2}\text{ }potatoes$

- And she can peel them in this time:

$\frac{1}{3}\text{ }hour$

You can determine that the Unit Rate is the number of potatoes she can peel per hour.

Since the number of potatoes is given as a Mixed Number, you can convert it to an Improper Fraction as follows:

1. Multiply the Whole Number part by the denominator.

2. Add the Product to the numerator.

3. The denominator does not change.

Then:

$10\frac{1}{2}=\frac{(10\cdot2)+1}{2}=\frac{20+1}{2}=\frac{21}{2}$

Now you can set up that:

$Unit\text{ }Rate=\frac{\frac{21}{2}\text{ }potatoes}{\frac{1}{3}\text{ }hour}$

Solving the Division, you get:

$\begin{gathered} Unit\text{ }Rate=\frac{21\cdot3}{2\cdot1}\frac{potatoes}{hour} \\ \\ Unit\text{ }Rate=\frac{63}{2}\frac{potatoes}{hour} \end{gathered}$

Hence, the answer is:

$Unit\text{ }Rate=\frac{63}{2}\frac{potatoes}{hour}$

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1 year ago

How do i find the least common denominator of 3/8 and 5/6?<br><br>No links please.

torisob [31]

Step-by-step explanation:

first find a number that makes divided both if you don't get multiply the denominators

8 0

4 years ago

yulyashka [42]

The answer is C because it like adding 11.40+00.40 and that would be 12:20

3 0

3 years ago