# math

I need this by tomorrow morning

I had \$6 to pay for part of lunch. My friend had enough money to pay the other part or 3/5 of the bill. What is the total bill?

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1. is this the right answer:
My friend paid 9 dollars and the total bill is 15?

Could you also tell me if the answer to the following is 16?

If 12 counters are 3/4 of a set, what is the whole set?

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2. You could set it up this way, with x equal to the total bill:

2/5 x = 6
x = 6 divided by 2/5
x = ?

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Ms. Sue
3. Yes. The total bill is \$15.

You could set it up this way:
3/4 x = 12

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Ms. Sue
4. I am only in 5th grade and not using x yet. This is part of parts and whole fractions.

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5. You found the right answer. :-)

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Ms. Sue
6. I think the answer to my first problem is 15 for the total bill but I am just guessing. I need to explain the answer.

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7. You paid 2/5 of the bill (1 - 3/5 = 2/5)

To do that you need to divide 6 by 2/5.
6 divided by 2/5 = 6 x 5/2 = 30/2 = 15

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Ms. Sue
8. 5th grade fractions least to greatest

example: 7/12 _____3/9

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