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

Tutors Answer Your Questions about percentage (FREE)

Question 4194: Jason got a 7 5 on a math test. He was allowed to go to the math lab and take a retest. He increased his score to 84. What was the percent of increase?
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Question 5714: what is the 25% of 27000 rupees?what is the increased amount of money?
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Question 5784: 15% of 11 million
5% of 11 million
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Question 5917: How do I work out what percentage one figure is of another. i.e. If I have an overall figure (B) of 134,789 and part of this is A which equals 27,987 what percentge is A of B?
Many thanks
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Question 5921: how much money is 45%of 250$
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Question 6417: what is 20% of 625.57
The answer would be 125.114, but the way you solve it is by muliplying 625.57 by .20 (which is 20% with the decimal moved two places to the left).

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Question 6456: What formula do I use to show what percentage of 1,664 is 18?
If Ann works a 32-hour week, except for 2 months of the year, her actual hours worked in a year is 1,646, not (32 * 52). For 2 months, she works 30 hours, which reduces her yearly total by 18 hours. Since her leave is awarded based on a 32 hour week, we need to reduce that award by whatever percentage 18 is of the full yearly hours, as above.
Annual vacation leave for 32-hour week = 128 hours
" sick " = 76 hours
The best guesstimate is .01% which is of course closer to 17.25 hours, and could be used for this purpose, but is there a better formula?
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Question 5937: How would you express 5/9 as a percent
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Question 6562: 1. The width of a rectangle is 10 feet less than the length, find the length of each side if the perimeter is 100 feet.
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Question 6564: what is 40% of £6.50?
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Question 6673: WHAT IS THE FORMULA TO FIGURE OUT WHEN YOU GET A RAISE WHAT THE PERSANTAGE IS.
EXAMPLE IF A PERSON MAKES $12.27 PER HOUR AND NOW THEY MAKE $12.62 PER HOUR HOW DO YOU FIGURE WHAT % YOUR RAISE IS?
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Question 6669: If we raised $14,550 last year in a fundraising campaign and 19,400 this year what percentage increase is that? I think it has something to do with dividing the difference of 4850 by one of the numbers and I think it is a 25% increase but I wanted to check.
Thanks!
Monica
Click here to see answer by prince_abubu(198)

Question 6708: How do you figure a percentage profit on cost?
If you have a item with the cost of $150.00 and want to make 35% profit on it what formula do you use? Is that called gross profit on cost?
Thanks,
Ron.
Click here to see answer by prince_abubu(198)

Question 6959: MR MARSH LEFT AN ESTATE AMOUNTING TO 24,000. ACCORDING TO HIS WILL ,10% WAS TO BE GIVEN TO A COLLEGE, 15% TO A CHURCH AND THE REMAINDER WAS TO BE DIVIDED EQUALLY AMOUNG 3 NEICES. HOW MUCH MONE DID EACH NIECE RECEIVE?
DO YOU MULTIPLY BOTH PERCENTS BY 24,000 FIRST?
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Question 6990: what is the decimal for 45%
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Question 7222: Mina ran 100 metre in 9.9 seconds. There was a 10% improvement from her previous best time. What was her previous best time?
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Question 7424: How do I draw a picture to represent 150%
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Question 7780: The rice consumption in a certain city was 80 000 tonnes in 1995.By 2000, the rice consumption had increased by 24%.If the consumption of rice in the city continues to increase at the same rate, i.e, 24% every 5 years, find the consumption of rice in the city in 2005.

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Question 7785: how do i work out 3% solution from a 6% solution of 1.5ml hydrogen peroxide solution?
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Question 7947: A 131 lb. person has 84 lbs. of water in their body. What percent of their mass is the water?
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Question 7946: -3/x=83 is this a linear equation?
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Question 8011: 64 is 125% of (blank)
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Question 8446: 75% of 42
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Question 8453: Please help! A little rusty with math...
A can of tomatoes is on sale at 20% off for 64 cents. What is the normal selling price of the tomatoes?
Now I know the answer is 80 cents, but I don't know how that answer was found.
When I try and solve, I come up with 76.8 cents. There has to be something I'm forgetting to do.
Thanks for your help.
Click here to see answer by Earlsdon(6287)

Question 3347: 22 is 80% of what?/ 32 is whatt percent of 56?/ and if x is 8 when y is 18, and x and y vary directly, what is the value of y when x is 10?
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Question 9112: nine is 3/5 of what number? 3,15,27,or none of these? thanks for the help!!!!!!!!!!!!!!!!!!!!!!!
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Question 9073: please help mw with this problem:what percent is equal to the fraction 7/8/
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Question 9335: ---
.45 What is the fractional equivalent? (45/100) but what does the line above the number mean?
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Question 9346: I posted this earlier but the SOLID LINE above the number did not print out correctly when my question was posted. The question is: what does a solid line above the number .45 mean? I am supposed to rewrite the number ( .45 with a solid line above it) as a fraction. Would it be different than the normal
45/100 ? Thanks so much.
Click here to see answer by rapaljer(4667)

Question 9359: I was able to solve Marilyn Savant's Monty Hall question yet this one fooled me at first because intuitively I would add the percentages in the following question and then solve for the final value discount however the “correct answer” requests you to solve using a different method (solve for the first discount and proceed to solve for the next discount)
I just want to know why you would solve this way .8 x .85 x 450 = $306 and not this way .65 x 450 = $292.50…
"Employees of a discount appliance store receive an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?"

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Question 9365: (-7)x(+3)= the answers are....-4, -21, -10, or 4
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Question 9364: (-3)-(-9)= the answers are.....-12, 12, -6,or 6
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Question 9367: (+36)divided by (-6)= the answers are.....-6, 6, 30, or -30
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Question 9371: which digit is in the thousands' place in the number 79,582.3416?
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Question 9370: 18w=9^2 theanswers are....4&1/4, 5&1/9, 1, or none of these
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Question 9370: 18w=9^2 theanswers are....4&1/4, 5&1/9, 1, or none of these
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Question 9373: when the sum of 3.0 and 5.0 is subtracted from the product of 3.0 and 5.0, what is the difference?(the answers are....23.0, 20.0, 7.0, or none of these)
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Question 9114: sixteen is 25% of what number?..................... 4,64,40,or all of these?
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Question 9368: equal fractions have equal....numerators, cross products, none of these or demonitors?
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Question 9410: a maths exam contained two problems. Problem A was solved by 70% of the students. Problem B was solved by 60%. Every students solved at least one of the problems. Nine students solved both problems. how many students sat the exam?
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Question 9419: how do i convert .004 into a percentage?
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Question 9475: I need the answer to this question asap!!
A pair of jeans cost $39.50.What is the total cost of the jeans with tax??
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Question 9703: I dont get how to do 20% of 45
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Question 10623: if the triangle area is 54 and the base is 12 then what is the height?
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420