Please help!, Fan and Medal!!!

- anonymous

Please help!, Fan and Medal!!!

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- anonymous

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- anonymous

First, let's "get rid" of the fraction by multiplying both sides by 9.

- anonymous

The fraction?

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- anonymous

So, we have: 324 = 5k

- anonymous

Then, we get k by itself by dividing each side by 5.

- anonymous

We now have 64.8 = k

- anonymous

64 4/5 would be your answer. :-)

- anonymous

Thanks!!!, can you help me with some more please?? :o

- anonymous

@SmartyPants1011

- anonymous

Sure. :-)

- anonymous

Okok! ill post it here

- anonymous

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- anonymous

c. l = 5 * 3 1/8

- anonymous

Would you like me to explain?

- anonymous

Yes please!

- anonymous

So, each piece is 3 1/8 inches long. There are five pieces in the board. To find the length of the board, we could either add 3 1/8 to itself 5 times, like this:
3 1/8 + 3 1/8 + 3 1/8 + 3 1/8 + 3 1/8
Or, we could just multiply 3 1/8 by five, like this:
3 1/8 * 5
Now, to put together the equation, we just need to say what 3 1/8 * 5 is. WHat is the solution to that problem going to represent. Well, it's going to represent the length of the board. So, we can say that l will represent length in the equation.
So, we end up with:
l = 3 1/8 * 5

- anonymous

Make sense?

- anonymous

Yeah!, thanks!

- anonymous

:-D

- anonymous

Do you have any other questions?

- anonymous

yes!

- anonymous

Ok. Ask away. :-)

- anonymous

What is the least common denominator for the 5/6 fractions and 3/8?
A.
14
B.
48
C.
24
D.
18

- anonymous

I'm a bit confused about this one. It is phrased weirdly. I'm still trying to figure it out.

- anonymous

Oh, ok. I think the answer is 24.
Here are instructions to find the LCD, as I can't think of how to explain it:
To find the LCD first convert all integers and mixed numbers (mixed fractions) into fractions. Then find the least common multiple (LCM) of the denominators which is equal to the least common denominator (LCD). You can then rewrite each term as an equivalent fraction with the LCD.

- anonymous

Which decimal is equivalent to 4 3/12?
A.4.25
B.4.3
C.4.03
D.4.12

- anonymous

Let's simplify the fraction first. Both 3 and 12 are divisible by 3.
3/12 simplifies to 1/4. And, you probably know that 1/4 = 0.25.
This means that your answer is 4.25

- anonymous

Justin has 6 bags of dog food. His dogs eat 3/4 bag each day. How long will his dog food last?
A. 4 1/2 days
B. 6 3/4 days
C.8 days
D.7 days

- anonymous

To do this, we just have to multiply 6 times 3/4. We can put 1 as the denominator beneath 6 to make the multiplication easier.
3/4 * 6/1 = 18/4
If we simplify 18/4, we get 4.5 (which is the same as 4 1/2)
So the dog food will last 4 1/2 days. :-)

- anonymous

ok last one for the night!

- anonymous

Ok! :-D

- anonymous

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- anonymous

We will multiply the distance traveled by the number of hours.
3 3/4 * 3 1/2
We can make the multiplication much easier by converting both to fractions, instead of trying to multiply while they are mixed numbers.
15/4 * 7/2 = 105/8
This simplifies to 13 1/8

- anonymous

Thank you so much!!!!!

- anonymous

No problem! I'm happy to help! :-D

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