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Tutors Answer Your Questions about percentage (FREE)
Question 240370: My yearly gross income is 42,640 and my yearly expense are 18,207.80. So my expenses would account for what percentage of my yearly gross income?
Answer by Alan3354(6089)   (Show Source):
You can put this solution on YOUR website!My yearly gross income is 42,640 and my yearly expense are 18,207.80. So my expenses would account for what percentage of my yearly gross income?
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18207.80/42640 =~ 0.427012
=~ 42.7%
Question 240756: $8 dollarsis what percent of $20 dollars?
Answer by solver91311(5072)  (Show Source):
Question 240751: How do I determine the answer to this question:
35% of 12,500 equals ___?
Answer by solver91311(5072) (Show Source):
Question 240552: Briana took a major test on the 5 oceans and 7 continents of the world. She got 16 out of 20 questions correct on the test.
What was her percentage of correct answers?
Answer by rfer(2688)  (Show Source):
Question 240381: 1. how do you convert 3/7 to a percentage? (round to the nearest tenth if needed)?
2. How do you convert 0.89 to a percentage?
3. How do you convert 5% into a fraction and reduced to lowest term?
4) 100 is 85% of ?
Answer by checkley77(7068) (Show Source):
You can put this solution on YOUR website!convert 3/7 to a percentage?
3/7=.4 ANS.
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convert 0.89 to a percentage?
.89=89% ANS.
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convert 5% into a fraction and reduced to lowest term?
5%=.05=5/100=1/20 ANS.
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100 is 85% of ?
100/.85=117.647 ANS.
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Question 239972: When 45 people were polled, 32 liked the restaurant and the others did not like it. If this data were put into a pie chart, how many degrees would be in the angle that represents people who liked the restaurant?
Thank you.
Answer by checkley77(7068) (Show Source):
Question 239728: A school has a current enrollment of 528 students. That is an increase of 10% over last year. What was last year's enrollment?
Answer by edjones(3298)  (Show Source):
Question 239176: I have asked my teacher for help, but she says according to the school rules she cannot help me. She cannot even offer an example problem to give me the concepts needed to figure out this equation.
Selena left an 18% tip for a meal. The total cost of the meal, including the tip, was $40.71. What was the cost of the meal before the tip was added?
I came up with this formula
(x)(18%)=40.71
(x)(18%)/18%=40.71/18%
x=226.17
Which according to division rules, I am to move the decimal over....22.62 (rounding to the nearest tenth)
therefore 22.62 times 18% is 4.071, moving the decimal that would be correct.
Is there a rule for moving the decimal in these algebraic equations?
Thank you very much!
Answer by checkley77(7068) (Show Source):
You can put this solution on YOUR website!18%=.18 in decimal.
Let x be the cost of the meal & .18x be the amount of the tip.
total cost=meal+tip
40.71=x+.18x [1x+.18x=1.18x]
1.18x=40.71
x=40.71/1.18
x=$34.50 was the price of the meal before the tip.
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IF YOUR COMMENTS ARE VALID THEN I MUST OFFER A OPINION:
Either the school rules are ridiculous.
Your teacher doesn't know how to solve these problems.
Or you have no taxt books with proper examples.
WHATEVER THE CASE, THE SCHOOL SYSTEM IS AT FAULT FOR NOT TEACHING, WHICH IS WHAT I ASSUME THEY ARE BEING PAID TO DO.
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Question 239025: I really need help on this question:
A goldsmith has two different alloys of gold. One is 50% and one is 75%. A custom necklace requires 200g of 66% gold. How much of each alloy is needed to make this.
Answer by scott8148(3382)  (Show Source):
Question 239022: I need help with this question please..
A goldsmith has two different alloys of gold. One is 50% and one is 75%. A custom necklace requires 200g of 66% gold. How much of each alloy is needed to make this?
Answer by scott8148(3382) (Show Source):
Question 238386: what is the percent increase in the population for all six inhabited continents, excluding asia from 1950 to 2000
Answer by College Student(210)  (Show Source):
Question 238861: The sales price of a car is $12,590, which is 20% off the original price. What is the original price?
Answer by josmiceli(3012) (Show Source):
Question 238735: I'm not sure if this is the right category? But Can you please help me figure this one out? Thank you so much in advance for your time...
The problem states:
Find four large cities around the world and an approximate percentage rate of population growth for the countries in which the cities are located. Estimate the population in each of the four cities in 25 yr.
Say the pop. is 199,999 and the approx. % rate is 7%.Will this formula work:
FV= PV * (1 + r) ^t
Answer by JimboP1977(76)  (Show Source):
You can put this solution on YOUR website!Yes it sure will assuming the percentage increase is over a year then
199,999 * (1 + 0.07)^25 = 1,085,481
Do you understand how it works, the principles behind it?
Any questions?
Question 238381: Trying to assist son with homework that is due Monday. I never took algebra in high school it was an elective and I should have but never did take it so it is difficult to help him but I guess we are learning together. If you could please explain the answer so I could know how to explain it problem to him that would be great.
1) Find and equation of the line that passes through the given point and has the given slope. Express answer in slope intercept form. (8,0), m= -3. Could you tell me what the formula is for one given point.
2) Find an equation of a line satisfying the given conditions. Express in standard form.
parallel to 3x-y= -5 and passing through (-1,0) Please provide formula
Thanks for any help
Answer by scott8148(3382) (Show Source):
You can put this solution on YOUR website!we parents have to stick together...
1) the general point-slope form is ___ y minus "y-coordinate" equals slope times (x minus "x-coordinate")
___ in this case ___ y - 0 = -3 (x - 8) ___ or y = -3x + 24
2) for the lines to be parallel, the slopes must have the same value
___ in this case, the left side of the equation stays the same
___ use the given point to find a new value for the right side
___ 3(-1) - (0) = -3
___ so the new equation is ___ 3x - y = -3
Question 238280: only 20 percent of the towels were wet. if 520 towels were dry,how many towels were there in all?
Answer by checkley77(7068) (Show Source):
Question 238220: What is 66 2/3% of 90?
Answer by checkley77(7068) (Show Source):
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
Answer by Stitch(43) (Show Source):
You can put this solution on YOUR website!You were given the cost of the total production. $207.00
The first thing you need to do is add the production of every store together to find the total production.
To find the pecentage that each store should pay, divide their production by the total production and then multiply that by 100
Example for Store 1:
Store 1 production = 1,368
Total prodution = 36,973
Total production cost = $207.00
Store 1 % of cost: 
So Store 1 should pay about 3.70% of the $207.00
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?
Answer by nerdybill(2446)  (Show Source):
You can put this solution on YOUR website! 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?
.
Let x = the discount
then
150 - 150x = 72.50
150(1- x) = 72.50
1-x = 0.48333
-x = -0.5167
x = 0.5167
.
Multiply by 100 to get the percentage:
x = 0.5167*100
x = 51.7%
Question 237550: 135 is what percentage of 1125
Answer by josmiceli(3012) (Show Source):
You can put this solution on YOUR website!Another way to ask the question is:
"What number divided by  and
multiplied times  will give me
 ?
Multiply both sides by
is 12% of
check:
OK
Question 237469: If a product normally retails for $40.00 and we give you a $10 discount, what percentage discount do you receive?
Answer by checkley77(7068) (Show Source):
Question 237357: what is 10% off $7.35.
Found 2 solutions by solve it!, College Student:
Answer by solve it!(2) (Show Source):
Answer by College Student(210) (Show Source):
Question 236652: what percentage of 300 is 40?
Answer by stanbon(26284) (Show Source):
You can put this solution on YOUR website!what percentage of 300 is 40?
-----------------
Percentage means per 100
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x/100 = 40/300
x = 100(40/300)
x = 40/3
x = 13 1/3
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40 is 13 1/3 % of 400
==========================
Cheers,
Stan H.
Question 236656: what percentage of 300 is 40?
Answer by srisanj4(2) (Show Source):
You can put this solution on YOUR website!Question: What percent of 300 is 40.
Let us say X % of 300 is 40. If I write this in mathematical equation..
X% * 300 = 40
X/100 * 300 = 40
3X = 40
X = 40/3 = 13.33
Hence 13.33 percent of 300 is 40
Question 236577: Amy paid 77.03 for a pair of shoes. The shoes were 40% off sale. What was the regular price
Answer by rfer(2688) (Show Source):
Question 236593: percent of change original 25 new 10
Answer by checkley77(7068) (Show Source):
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?
Answer by JimboP1977(76) (Show Source):
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
Answer by JimboP1977(76) (Show Source):
You can put this solution on YOUR website!Original area = 15 * 20 = 300 inches^2
New area = 18 * 32 = 576 inches^2
To find the percentage increase we take the difference of the two which is 276.
Then we take the difference and divide by the original area:
276/300 = 0.92
Multiply by 100 to give a percentage = 92% increase.
To think about it another way we are saying that the area has increased by 92% of its original size.
So 92% of 300 is 276 which is the amount of the increase.
Does that make any sense at all?
Do you need further clarification?
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?
Answer by JimboP1977(76) (Show Source):
You can put this solution on YOUR website!Assuming the original price of the leather coat is $110?
10% off $110 is 110-(110*0.1)= $99 OR 110*0.90 = $99
Does this answer your question or do you need further clarification?
Question 235975: from $50 to $67
is it percent of increase or percent of decrease
Answer by xmoo22xx(3) (Show Source):
Question 235885: Is 33(1/3)% equal to (1/3) of the value?
Answer by nyc_function(260)  (Show Source):
Question 234658: what would you be paid if you sold a used car for $12,050 and your commision was 10 percent?
Answer by rfer(2688) (Show Source):
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!
Answer by ankor@dixie-net.com(6693)  (Show Source):
You can put this solution on YOUR website!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?
:
The decimal equiv of 106% = 1.06
:
Let x = no. in 1990
;
original amt + the 106% increase = 42.7 million
x + 1.06x = 42.7
2.06x = 42.7
Divide both sides by 2.06
x = 
x = 20.7 million in 1990
;
:
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.
Answer by checkley77(7068) (Show Source):
You can put this solution on YOUR website!306=(1-.15)x
306=.85x
x=306/.85
x=360 price after the first discount.
360=(1-.10)x
360=.9x
x=360/.9
x=400 original price of the flute.
Answer C).
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.
Answer by solver91311(5072) (Show Source):
You can put this solution on YOUR website!
Is there some reason that you feel the need to shout? Typing in ALL CAPS is the text communication equivalent of shouting. It is both annoying and rude.
The answer to your question depends on whether you are considering the piece that goes from 12 to 3 clockwise, or from 12 to 3 counterclockwise. The 3 is at 90 degrees from 12, so the smaller piece is 90/360 or 1/4. The larger piece is then 3/4. Just convert 1/4 or 3/4, whichever you think it is, to percent. You can do that by dividing the denominator of the fraction into the numerator and then multiplying the result by 100.
John
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.
Answer by scott8148(3382) (Show Source):
You can put this solution on YOUR website!"The perimeter of a rectangular driveway is 168 feet" ___ 2L + 2W = 168
"The length is 12 feet longer than three times the width" ___ L = 3W + 12
substitute for L to find W, then substitute back to find L
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?
Answer by stanbon(26284) (Show Source):
You can put this solution on YOUR website!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?
--------------------
Interest Equation:
0.05x + 0.07(8000-x) = 496
---
Multiply thru by 100 to get:
5x + 7*8000 - 7x = 49600
-2x = -6400
x = $3200 (amount invested at 5%)
----
8000-3200 = $4800 (amount invested at 7%)
============================================
Cheers,
Stan H.
Question 234206: One sixth of all sales are for cash. Cash sales for the week were $265, what were the total sales.
Answer by checkley77(7068) (Show Source):
You can put this solution on YOUR website!SORRY I MISTYPEDTHE 21 INSTEAD OF THE 2 & DIDN'T CHECK IT.
I'VE BEEN AT THE COMPUTER FOR ABOUT 5 HOURS AND AM GETTING BUG-EYED.
CORRECTION FOLLOWS.
x/6=265
x=265*6
x=$1,590 ans. for the total sales for the week.
Question 234018: what are two ways you can find 13 percent of a number
Answer by Alan3354(6089) (Show Source):
Question 234062: I work with 63 toes. I done 28. what precent of the work have i'done?
Answer by rfer(2688) (Show Source):
Question 233911: A solar calculator that costs $75 last year is now $83. What percent increase is this? Thanks
Answer by rfer(2688) (Show Source):
Question 233523: Amy paid 58.47 for a pair of running shoes at 40% off sale.what is the regular price?
Found 2 solutions by stanbon, checkley77:
Answer by stanbon(26284) (Show Source):
You can put this solution on YOUR website!Amy paid 58.47 for a pair of running shoes at 40% off sale.what is the regular price?
-----------------------
Let the regular price be "x":
Equation:
x - 0.40x = 58.47
0.60x = 58.47
x = $97.45
==============
Cheers,
Stan H.
Answer by checkley77(7068) (Show Source):
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?
Answer by edjones(3298) (Show Source):
Question 233232: Keiko bought a suit on sale for $289 . This price was 15% less than the original price.
What was the original price?
Answer by Alan3354(6089) (Show Source):
You can put this solution on YOUR website!Keiko bought a suit on sale for $289 . This price was 15% less than the original price.
What was the original price?
-----------
$289 is 85% of the original price.
OP*0.85 = $289
OP= $289/0.85 = $340
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