Question

35% of 31 is 10.85% right?

Answer 1

31/100 = .31 = 1%

.31
35
----
93
155
-----
10.85 = 35%

Answer 2

yay thankyou! i was right!

Answer 3

I promise it's not 10.85% :)

Answer 4

wat? but how......

Answer 5

It's just the percentage sign at the end. That doesn't go in the answer.

Answer 6

so its just 10.85? thts it?

Answer 7

Yep!

Answer 8

ok . . . um wat about the question (-10)+10? =-20 right?

Answer 9

Nope. Draw a number line. Mark -10 on the line, then add 10 to it and see where you end up.

Answer 10

thts wat i did lol

Answer 11

If you're adding a number, you have to move to the right on the number line.

Answer 12

o wait the answer's 0 . ..lol

Answer 13

Yep!

Answer 14

lol thankyou. . ok so if im subtracting o go to the left of the number line, and if im adding to the right?

Answer 15

Correct. Just be careful when you're adding or subtracting a negative number.

Answer 16

wat do u mean?

Answer 17

Negative means you switch directions.

Say we're solving 4-(-1). You'd normally start moving left because you are subtracting, but you're subtracting a negative number so you have to go right instead. Subtracting a negative is like adding and adding a negative is like subtracting.

Answer 18

oh ok, and that would be because the two negatives make a positive right?

Answer 19

Only in math!

Answer 20

But yes :P

Answer 21

lol ok

Answer 22

so for example. . . 10+(-8)=2 right?

Answer 23

Correct

Answer 24

yay! lol

Answer 25

what about like for 36% of 74? im having a lot of trouble finding percents . . ik the fraction has to be the number over 100 but is there something im supposed to do with decimals as well?

Answer 26

The fraction gives you the decimal. Multiply the decimal by 74 to get your answer.

Answer 27

...soo confused

Answer 28

The fraction is 36/100. What that really means is 36 divided by 100. 36 divided by 100 is 0.36. That's your decimal.

Then you take that decimal and multiply it by 74.

36% of 74 means the same thing as 0.36 x 74

Answer 29

so then 64% of 41 would be 26.24?

Answer 30

Yep!

Answer 31

great! and 33% of 40 would be . . . 13.2? i just wanna make sure im doing it right lol

Answer 32

It sure is. Sounds like you've got it.

Answer 33

thx for all ur help :]

Answer 34

No problem :)

Answer 35

wait just to clarify . . . (-3)+1=-4 right?

Answer 36

?

Answer 37

No. You're adding so you go right.

Answer 38

ooo right ok....... depending on the signs (negative or positive) right? thts still confusing me..

Answer 39

Think of the first number as the starting point. It doesn't matter if it's negative or positive. That's just where you start on the number line.

The second number is the one that does all the work. If you're adding the second number, you go right on the number line. If you're subtracting the second number, you go left on the number line.

Answer 40

oooo ok! i get it now ..thankyou! and btw 71% of 68=48.28 right? and do i add the percentage sign to the answer or just leave it as the decimal alone...

Answer 41

That is the correct answer. Just leave it as the decimal alone.

Answer 42

ok and why dont i add the percent sign because wouldnt the answr be 48.28%

Answer 43

Percent is just taking a certain amount of something. If you have 100 pieces of cheese and you wanted to take 20% of that cheese to school with you, you'd be taking 20 pieces of cheese. 20% of 100 is 20.

You aren't taking 20 percent pieces of cheese. You're taking 20 pieces of cheese.

If you have 25% of 20 apples, you have 5 apples. You don't have 5 percent apples.

Does that make sense?

Answer 44

yes very much lol ok i get it now

Answer 45

thankyou