Questions on Algebra: Percentage and Pie Charts answered by real tutors!

Tutors Answer Your Questions about percentage (FREE)

Question 230029: In 2010, the price of a business math text rose to $113. This is 8% more than the 2009 price. What was the old selling price?
113/.08=9.04
113.-9.04
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Question 230437: sales tax 5.5% of $125
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Question 230437: sales tax 5.5% of $125
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Question 230634: If a discount of 20% off the retail price of a desk saves Mark 45, how much did he pay for the desk.
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Question 230638: How do you add and subtract percent.
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Question 230660: How do you make .2 a percent.
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Question 230663: How many years dose Steven need to invest his 3,000 at 7% to earn $210 in simple interest.
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Question 230675: A car dealer sells a SUV for $39,000, which represents a 25% markup over the dealers cost. What was the cost of the SUV to the dealer.
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Question 230673: A car dealer sells a SUV for $39,000, which represents a 25% markup over the dealer's cost of the SUV to the dealer?
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Question 231021: A rancher is planning to put up 220 yards of fencing. In the morning she puts up 80 yards, and in the afternoon she puts up 40% of the remaining fence. What percent of the fence did she put up that day?
Click here to see answer by edjones(7569)

Question 232171: Phillip charged $400 worth of goods on his credit card. On his first bill, he was not charged any interest, and he made a payment of $20. He then charged another $18 worth of goods. On his second bill a month later, he was charged 2% interest on his entire unpaid balance. How much interest was Phillip charged on his second bill?
Click here to see answer by rfer(12670)

Question 232294: Question: 70 students got an average score of 80, 30 students got an average score of 70. What is the average score of all students? Please explain how you calculate. thank you
Click here to see answer by stanbon(57387)

Question 232616: My teacher in advanced algebra doesn't really have time to answer my questions because i have her for my 7th period. My question is,
In a catalog, a jacket was marked down from $75 to $48. What is the percent of change? Is this an increase or a decrease?
Click here to see answer by rfer(12670)

Question 232864: solve 2a/3=8+4a
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Question 233077: what percent of 88.6 is 70?
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Question 233232: Keiko bought a suit on sale for $289 . This price was 15% less than the original price.
What was the original price?

Click here to see answer by Alan3354(30993)

Question 233274: a)In a shipment of 1125 parts, 25 were found to be defective. What percentage of the part were faulty?
b)/5/+/-1/ and /5+-1/ Why are the different?
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Question 233523: Amy paid 58.47 for a pair of running shoes at 40% off sale.what is the regular price?
Click here to see answer by checkley77(12569)

Question 233523: Amy paid 58.47 for a pair of running shoes at 40% off sale.what is the regular price?
Click here to see answer by stanbon(57387)

Question 233911: A solar calculator that costs $75 last year is now $83. What percent increase is this? Thanks
Click here to see answer by rfer(12670)

Question 234062: I work with 63 toes. I done 28. what precent of the work have i'done?
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Question 234018: what are two ways you can find 13 percent of a number
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Question 234206: One sixth of all sales are for cash. Cash sales for the week were $265, what were the total sales.
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Question 234413: Tori invested $8000 in money market funds. Part was invested at 5% simple interest and the rest at 7% simple interest. At the end of 1 year, Tori had earned $496 in interest. How much did she invest in each fund?
Click here to see answer by stanbon(57387)

Question 234411: The perimeter of a rectangular driveway is 168 feet. The length is 12 feet longer than three times the width. What are the dimensions of the driveway?
I do not even know which formula to use to solve this problem. If someone could tell me how to begin I could probably figure it out.
Click here to see answer by scott8148(6628)

Question 234471: ONE PIECE OF THE PIE HAS THE SAME SHAPE AS WOULD BE FORMED BY THE HANDS OF A CLOCK WHEN IT IS EXACTLY THREE O'CLOCK.THIS PIECE WOULD REPRESENT _% OF THE WHOLE PIE.
Click here to see answer by solver91311(16897)

Question 234473: An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale an additional 15% is taken off the discounted price. Julie, a student at the local high school, purchases a flute for $306. How much did it originally cost?
A. $325
B. $375
C. $400
D. $408
E. $425
I was given the correct answer but I dont know how to get it.

Click here to see answer by checkley77(12569)

Question 234412: In 2006, the # of Americans who were members of a health club was 42.7 million. This was an increase of 106% from th enumber of health club members in 1990. How many Americans were Health club members in 1990? Percentages are lost on me!
Click here to see answer by ankor@dixie-net.com(15660)

Question 234658: what would you be paid if you sold a used car for $12,050 and your commision was 10 percent?
Click here to see answer by rfer(12670)

Question 235885: Is 33(1/3)% equal to (1/3) of the value?
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Question 235975: from $50 to $67
is it percent of increase or percent of decrease
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Question 236475: Ok this has got me.. If I was selling a leather coat at my store and increased the price by 10% then declared a sale at 10% off wouldn't the price be $99?
I worked this two different ways and one way I get $99 and the other I get $98
What am I doing wrong? Can you show me the correct way to do this one?
Click here to see answer by JimboP1977(308)

Question 236471: If I had an old TV that is 15" by 20" and bought a new TV that measures 18" by 32", how do I make a formula to find out the percent of increase in area of the new TV Screen? I think I can find area of each, but am lost when it comes to finding the percent of increase. Can you help please
Click here to see answer by JimboP1977(308)

Question 236470: I am needing to find a formula for finding the percent of increase or decrease of problems such as: What is the % of increase of 45mph to 60mph.
I tried dividing 45/60 and 60/45 and finding the difference between 45 to 60 and multiplying. But nothing is giving me the answer?

Click here to see answer by JimboP1977(308)

Question 236593: percent of change original 25 new 10
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Question 236577: Amy paid 77.03 for a pair of shoes. The shoes were 40% off sale. What was the regular price
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Question 236656: what percentage of 300 is 40?

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Question 236652: what percentage of 300 is 40?

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Question 237357: what is 10% off $7.35.
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Question 237357: what is 10% off $7.35.
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Question 237469: If a product normally retails for $40.00 and we give you a $10 discount, what percentage discount do you receive?
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Question 237550: 135 is what percentage of 1125
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Question 237676: a dvd player originally cost $150. It is on sale for $72.50. what is the percent of the discount, rounded to the nearest tenth of the percent?
Click here to see answer by nerdybill(6962)

Question 238093: I have 8 stores who have to share the cost of supplies. Their cost is based on their production. The cost of the supply is $207.00.
Store 1 production is 1,368
Store 2 production is 2,130
Store 3 production is 5897
Store 4 production is 5,400
Store 5 prod is 4,438
Store 6 prod is 5,916
Store 7 prod is 5,880
Store 8 prod is 5,944
How do I figure the percentage that each store should pay of the $207.00 cost of the supply
Click here to see answer by Stitch(352)

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