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Mathematics 8 Online
OpenStudy (anonymous):

help me bump up 5% in math and i will do any thing

OpenStudy (skullpatrol):

Where are you now?

OpenStudy (anonymous):

@skullpatrol i am at a 64.2%

OpenStudy (anonymous):

please help me @phi

OpenStudy (phi):

what is the question?

OpenStudy (anonymous):

The cost of a jacket increased from $70.00 to $77.00. What is the percentage increase of the cost of the jacket? 10% 1% 90% 7%

OpenStudy (phi):

what is new price minus original price ?

OpenStudy (anonymous):

7

OpenStudy (phi):

and what is the fraction (new - original)/ original ?

OpenStudy (anonymous):

1.1

OpenStudy (phi):

? (new - original) = 7 (that is what you figured out) original is 70 what is 7/70 ?

OpenStudy (anonymous):

76

OpenStudy (phi):

7 divided by 70 is ?

OpenStudy (anonymous):

0.1

OpenStudy (phi):

now change the decimal to a percent: multiply by 100 and add on a % sign

OpenStudy (anonymous):

10

OpenStudy (anonymous):

i need to reach over 70% and now i am at a 64.5% can u help me

OpenStudy (phi):

not just 10 10% the % means 10 divided by 100 . if you leave off the %, 10 means 10

OpenStudy (anonymous):

i need to reach over 70% and now i am at a 64.5% can u help me @phi and @skullpatrol

OpenStudy (anonymous):

please :'(

OpenStudy (skullpatrol):

Percent of price change/100 = change in price/ original price

OpenStudy (anonymous):

can u help me with the rest please :'(

OpenStudy (skullpatrol):

Stop crying!

OpenStudy (anonymous):

i am so close and no one will help me

OpenStudy (anonymous):

completely

OpenStudy (anonymous):

i am at a 65.8% and i need to get over 70%

OpenStudy (skullpatrol):

Askaway :)

OpenStudy (anonymous):

The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $276.00. What was it worth a year ago? $210.00 $240.00 $250.00 $230.00

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (anonymous):

i subtracted it and got 220.8

OpenStudy (skullpatrol):

Subtracted what from what?

OpenStudy (anonymous):

20% - 276.00

OpenStudy (skullpatrol):

Why would you do that?

OpenStudy (anonymous):

what

OpenStudy (skullpatrol):

20% -276.00

OpenStudy (anonymous):

256

OpenStudy (skullpatrol):

Where did you get 256 from?

OpenStudy (anonymous):

20% - 276.00 = 256

OpenStudy (skullpatrol):

20% = 0.20

OpenStudy (skullpatrol):

0.20 - 276.00 =/= 256

OpenStudy (anonymous):

just so u know my computer lags a lot so please don't go if i don't answer back in like 5min sometimes

OpenStudy (skullpatrol):

Mine too :( Perhaps you should post a new question?

OpenStudy (anonymous):

i will tag u

OpenStudy (skullpatrol):

The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $276.00. What was it worth a year ago? Try $276 is to 1.20 as x is to 1.00

OpenStudy (anonymous):

i tagged u

OpenStudy (skullpatrol):

$$\Huge \dfrac{276}{1.20}= \dfrac{x}{1.00}$$

OpenStudy (anonymous):

i opened a new question and tagged u

OpenStudy (skullpatrol):

That^ will give you the answer :)

OpenStudy (anonymous):

Bert is planning to open a savings account that earns 1.6% simple interest yearly. He wants to earn exactly $256 in interest after 2 years. How much money should he deposit? $4,096 $80 $8,000 $800

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