Math percentages

Question

A container holds 15 ounces of water if 9 ounces or spilled what percent of the water remains in the container?

Answer 1

You should also take the opportunity to explain the importance and relevance of percentage calculations: pay rises, allowance rises, interest rates, discounts on sale items etc. Learning is always improved when the relevance of what is being learned is appreciated.

What is a percentage?

Percent means “for every 100” or "out of 100." The (%) symbol as a quick way to write a fraction with a denominator of 100. As an example, instead of saying "it rained 14 days out of every 100," we say "it rained 14% of the time."

Percentages can be written as decimals by moving the decimal point two places to the left:

Decimals can be written as a percentages by moving the decimal point two places to the right:

Math percentages

A container holds 15 ounces of water if 9 ounces or spilled what percent of the water remains in the container?

There is a formula that you can use to get a percentage of something.

PART OF WHOLE

WHOLE MULTIPLIED BY 100 = %

Let us try an example

1 \ 2 = .50 we multiply by 100 ( .50 x 100 ) = 50 %

In your case?

Your container becomes filled to capacity at 15 or 15 ounces.

Spilled was 9 ounces out of 15 ounces.

Part of Whole

Whole X 100 = %

9/15 = .60 ( we multiply by 100 ) = %

9/15 = 60 = %

9/15 = 60%

When the container is full it has 100%.

Then we must subtract ( the key word is spilled and not add or pour etc. ) from and not add to

When her glass is at capacity it is 100%

100% - 60% ( SPILLED ) = 40% ( REMAINING CONTENT )

ANSWER:

REMAINING % IS 40%

Send me a message if you understand one possible solution to the problem

Now try this problem

Your parents gave you 100 cents. They instructed you to give your brother 40 cents. What percentage do you have left? What percentage did you give to your brother?

Cont.

The next day your brother decided not to keep his share but lend it to you for your lemonade stand. Your % and now his % equals how much % of the whole?

Glad I could help

ONE LAST QUESTION

IS THE ANSWER IN MULTIPLE CHOICE FORMAT

Answer 2

If a container holds 15 ounces, 15 ounces represents 100 percent of the container, so therefore

15/15 = 100/100

If 9 ounces are spilled there is only 6 ounces left, so using proportions you will get:

6/15 = x/100, where x represents the percent that 6/15 represents

You cross multiply 6 x 100 = 15x

Therefore 600 = 15x

You divide by 15 to get x isolated and you get an answer of 40 percent.

Checking our work this means that 40% of 15 is 6

Therefore .40 x 15 = 6

Therefore 6 ounces represents 40% of what is left.