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January 25, 2015

January 25, 2015

Posted by **Kimberly** on Saturday, January 5, 2008 at 2:43pm.

i also need help with finding the percent of a number.

- Math -
**Damon**, Saturday, January 5, 2008 at 2:57pmIf you remove 8 boxes from the back seat of our car and each box contained 29 apples, then your car would lose (lose means negative) 8 times 29 apples

If you do not have a calculator then:

29 = (20 + 9)

so

-8 * 29 = -8 (20 + 9)

which is

-160 - 72

which is

-232

-----------------

to take for example 5.5 % of something, move the decimal point two units left (divide the percent by 100) and multiply

5.5 % is .055

so 5.5 % of 1000 is

.055 * 1000 = 55

- Math -
**oms**, Saturday, January 5, 2008 at 3:05pmwow guy this method is so much eisier you just make the negatives positive then multiply then you get the asnwer just pust the negative sign in front of it and then move the multiply by what ever percent you were trying to figure out for example -1*50 find 20 % the answer would be -50*.2 which is -10 jsut take away all the negative signs which is problly wut is confuzing u and just add it in at the very end unless there are two negatives in the starting equation in this sitiuation just take them out and leve it positive becasue dubl negatives

- Math -
**Writeacher**, Saturday, January 5, 2008 at 3:45pmWhen you multiply a negative and a positive, the answer is always in the negative. So ...

8 x 29 = 232

... and since it's really -8, the answer is -232.

I didn't learn the theories; I just learned the processes. They work just fine; then you can learn the theories later!

- Math -
**Writeacher**, Saturday, January 5, 2008 at 3:47pmA percent of a number? Do you mean something like 20% of 35.75? If you do, you simply convert the 20% to its decimal form (.20) and multiply, taking care to put the decimals in the right places.

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