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Mathematics 8 Online
OpenStudy (anonymous):

the price of a small pizza increased from$6 to $8. what is the percent of increase in the cost of pizza? round to the nearest percent, if necessary.

OpenStudy (anonymous):

What is the difference between 6 and 8? Or, what is the increase in price. Now that you have the increase in price, what percentage of the original cost is this new increase? percentage increase = \[\frac{ Difference }{ Original} x 100\]

OpenStudy (anonymous):

so...33%

OpenStudy (anonymous):

Why?

OpenStudy (anonymous):

idk, this is hard

OpenStudy (anonymous):

:(

OpenStudy (anonymous):

Well, what is the difference and the original?

OpenStudy (anonymous):

3/4

OpenStudy (stamp):

Remember the word "difference" being used with subtraction? So the difference of $6 and $8 is $2.

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

2%

OpenStudy (anonymous):

???

OpenStudy (anonymous):

is it?

OpenStudy (kuoministers):

look at what @malical type it is all you need difference is 2 and original is 8 Try putting these numbers into the formula there :)

OpenStudy (anonymous):

ummm ok

OpenStudy (anonymous):

Difference = Final answer - original. Obviously the original = original. For your problem, the final answer was 8 and the original was 6. Difference = 8-6 or 2. Original = 6. Sub those two into the equation and find your answer.

OpenStudy (anonymous):

4 right?

OpenStudy (kuoministers):

no please try again...

OpenStudy (anonymous):

gosh

OpenStudy (anonymous):

Did you even bother to look at the equation I gave you?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Do you understand what the formula does?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

25%/100

OpenStudy (anonymous):

????

OpenStudy (anonymous):

The formula takes how much the price increases and figures out what percentage that increase is of the original: If price goes from 15->22 then the increase would be 7. 7/12 = .46666 or 46%. Therefore, going from 15->22 is a 46% increase. Another idea is to figure out what 22/15 is. That would give you what percentage above AND including 15 is. (146%) taking out the 100% or 1 remains 46%.

OpenStudy (kuoministers):

yea its correct

OpenStudy (anonymous):

46% is not an answer A. 2% B.33% C.40% D.67%

OpenStudy (kuoministers):

14% was an example of the question... If price goes from 15->22 then the increase would be 7.

OpenStudy (anonymous):

AHHHHHH, THOSE ARENT ANSWERS ON HERE MAN, srry caps lock was on

OpenStudy (anonymous):

40% right

OpenStudy (anonymous):

hello??????????

OpenStudy (kuoministers):

no its not 40%

OpenStudy (anonymous):

but it says round to to the nearest percent

OpenStudy (kuoministers):

what did you round off?

OpenStudy (anonymous):

@malical said it was 46%

OpenStudy (kuoministers):

no hE DID NOT :P :P :P READ his post AGAIN PLEASE

OpenStudy (anonymous):

i did, now wat

OpenStudy (kuoministers):

his post was just an example of another question

OpenStudy (anonymous):

awww man

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

as u can see i suck @ math

OpenStudy (kuoministers):

by the way you were right the FIRST TIME. Answer is 33%

OpenStudy (kuoministers):

malical just simply asked why :P

OpenStudy (anonymous):

ive been sitting here 4 36 min, and thanks, im taking a test

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