I need help with finding percentage?

Question

Here is a sample Question: Sally buys a T.V. for the final price of $500. She had a 15% discount. What was the original price. If you have any websites to help me out I would appreciate it because of the HSPT tomorrow.

Thank you but I wasn't trying to find 15% of $500 but now I understand how to do it.

Answer 1

You need to find out what $500 is 85% of.

100%-15%=85%

500 x 85
? 100
(the 500 and the 85 are over the ? and the 100, I just
can't draw lines on here)

so 500 x 100 = 50000
50000 / 85 = 588.24 is the original price

Because
588.24 x .15 = 88.24
588.24 - 88.24 = 500

There ya go. It's not a website, just a simple formula.

Answer 2

to add to 3DD answer: the math is correct to find the 15% multiply the 500 by .15 which equals the $75. Now, the $500 is the discounted price so, $75 is the discount. So, $500 + $75 + $575 which is the original price. I hope I helped. Good luck.

P.S. What is HSPT???

Answer 3

Here is the CORRECT way -

X - 15% = 500, or
X (.85) = 500
If you divide both sides by .85 you get X = $588.23

Checking, 588.23 minus 15% = 588.23 - 88.23 = $500

You're not finding 15% of $500, but 15% of the original price, which when subtracted from the original price, equals $500.

Answer 4

i don't have a websiet, but i do have an esy way of figuring it out-

first u want to find out what 10% is, so u just move the decimal one place to the left. that's $50. to get the other 5% just take half of the 10% and then add the two ttogether- 50+25 = 75, so 15% of $500 is $75

Answer 5

STEPS
1. Put into a fraction.
2. For ex. 4/5 divide 5 into 4.
3. Then you should get a decimal then move the .decimal 2 places to the right. Ex.THIS IS THE ANSWER TO 4/5=0.8=8%
GOOD LUCK

Answer 6

15% of $500

Basically, change 15% to a decimal (.15) or fraction (15/100).

In math, of always means multiplucation.

.15 x 500 = $75

Answer 7

here is a website i found that you might want to check out: http://www.purplemath.com/modules/percntof.htm

also, because i dont know how your book works it out, you might want to go to http://www.hotmath.com and find your school book and it will work out the problem step by step the way it is in your book.. have fun studying!

(as someone who often gets confused with percentages, i have found using common sense helps me out a lot.. if i know my number should be bigger or smaller then i guess and test with mult. & dividing decimal numbers and then try to figure out if it sounds right -- that usually helps me, peace :) )

Answer 8

500 / (1 - .15) = x
500 / 0.85 = x
$588.24 (to nearest cent) = x