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

Tutors Answer Your Questions about percentage (FREE)

Question 175817: What percent of 280 is 42?
Click here to see answer by jim_thompson5910(28503)

Question 175820: The teacher gives a test. The results are as follows: 10 A's, 42 B's, 15 C's, 8 D's and 2 F's. What percentage of the class received B's?
Stuck on this problem? Thank you.
Click here to see answer by stanbon(57239)

Question 175930: An item was bought at $80.64 after a 30% discount. What is the original price?
Click here to see answer by nerdybill(6948)

Question 176223: If I bought an item for $100 and I want to make a 35% profit margin when I sell it, what price do I sell it for? What is the difference between percent profit and percent profit margin, or is there a diference?
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Question 176243: Twelve percent, or 30, of the students who take French joined the French Club. How many students take French?
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Question 176245: On the first day of a textbok sale, 25% of the books were sold. If 18 textbooks were sold, how many were sold?
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Question 176246: Professor Tsing meets five classes each day. One has 26 students, another has 33, and a fourth has 28 students. If this represents 78% of the students in her classes, what is the total number of students she teaches?
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Question 176244: Of the students in one class, 20% expressed an interest in a career in politics. If there were 40 students in the class, how many were interested in politics?
Click here to see answer by EMStelley(187)

Question 176616: A salary was increased 8 percent to $237.60, what was the salary before the increase?
Click here to see answer by Fombitz(13828)

Question 176774: A small town council must decrease operating costs by 17%.The present operating cost is $476,000. The council reduces the operating cost to $397,000. Is that enough? Explain.
Click here to see answer by Mathtut(3670)

Question 177437: The troll became incensed when he saw the billy goats across the bridge. Finally he tore the bridge down- but not before 18% of the goats had crossed. If 45 goats had crossed, how many goats were there?
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Question 177435: The troll became incensed when he saw the billy goats across the bridge. Finally he tore the bridge down- but not before 18% of the goats had crossed. If 45 goats had crossed, how many goats were there?
Click here to see answer by nerdybill(6948)

Question 177508: a firm making artificial sand sold its products in four countries.5%in spain,15%were sold in france 15%were sold in germany 65%were sold in uk.What would be the angles on a pie chart drawn to represent this info.
Click here to see answer by gonzo(654)

Question 177810: I am not sure how to do solve these problems.
*In a College Algebra class, the final exam is 20% of the course grade. If Greg's regular exam scores are 80, 64, 88, 92, and 85, what does he need to make on the final exam to make a B (80%) in the course?
*At fine restaurants, a 15% gratiuty is added to the check by the management. If your bill comes to $93.89, how much did the meal alone cost?
*At Bob's Fish House, small shrimp cost $4 per pound and large shrimp cost $6.50 per pound. A customer wishes to pay exactly $75 (before tax) for 15 pounds of a mixture of shrimp. How many pounds of large and small shrimp should Bob package for the customer?
Click here to see answer by Mathtut(3670)

Question 177928: Miss G wants to sell her computer for $4,000 on ebay. She is disappointed when she was forced to sell it for 18% less than her asking price. She also had to pay ebay 12% of her selling price just because they are mean. Of course she had to ship the computer for $200. How much profit did Miss G make?

Click here to see answer by Mathtut(3670)

Question 177949: 8 is 40% of x. Solve for x.
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Question 178140: The following are distances (in miles) traveled to the workplace by 18 employees of a certain hospital.
10,14,6,32,9,2,28,27,13,14,37,40,24,15,31,7,22,36
Find 25th and 90th percentiles for these distinces.

Click here to see answer by Mathtut(3670)

Question 178242: 400ml of solution contains 15% alchohol.how much alchohol to be added to make the solution to contain 32% alchohol?
Click here to see answer by Alan3354(30982)

Question 178528: what is 12 percent of 2,700
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Question 178566: Lori produces "Final Exam Care Packages" for resale by her sorority. She is currently working a total of 5 hours per day to produce 100 care packages. Lori thinks that by redesigning the package, she can increase her total productivity to 133 care packages per day. What will be the percentage increase in productivity if Lori makes the change?
Click here to see answer by Mathtut(3670)

Question 178557: The population of the U.S. in 1999 was estimated to be 273.1 million people. This was an increase of 34% from the population in 1969. What was the population of the U.S. in 1969.

Let X be the population of people for 1969
X + 34% = 273.1
X + .34 = 273.1
.34X = 273.1

Click here to see answer by jojo14344(1512)

Question 179655: how to breakdown the cost of a dollar cup of coffee into percentages representing a pie chart where percentages repesent how much of each dollar goes for rent.paper,food,utilities,payroll,advertising,profit,etc.
Click here to see answer by stanbon(57239)

Question 179667: A chemistry instructor has one solution that is 50% sulfuric acid and another that is 20% sulfuric acid. How much of each should she use to make 12 liters of a solution that is 30% acid?
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Question 158545: i have a 360 degrees circle and i have 6 things to put in them in percents how do i do that how do i find percents im so confused plz help

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Question 179840: write each percent as a fraction in simplest form , 155%
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Question 179880: A bill at officeland totaled $37.80. How much did the merchandise cost if the sales tax is 5%?
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Question 180294: Two hundred and seventy students wrote an exam in which 35 students got a mark higher than Paula and eight got the same mark as Paula, which is 83%. Her percentile rank in the class is ?
Click here to see answer by stanbon(57239)

Question 180523: the weight of the elephant was 1040 percent of the weight of the bear. If the elephant weighed 20,800 pounds, what did the bear weigh? draw a diagram as an aid in solving the problem.
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Question 180528: Express the following percent in decimal and in fraction form (in lowest terms).
0.02% = I understand that it's decimal form is 0.0002 but I don't understand why it's fraction format would not be 0.02/100 instead of 1/5,000.
Click here to see answer by josmiceli(9656)

Question 180544: In trying to find what 8% of 5% is, would i need to convert both percentages into a fraction? What is the process I would complete to find the answer
Click here to see answer by Mathtut(3670)

Question 180659: y=4x-3
(___,17)
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Question 180657: Find the equation of the line having given the slope and containing the given point.
m=7/8, (4,6)
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Question 180655: 4x+2y=4 What is the slope
2x-4y=10 What is the slope
Are the line paraller, perpendicular or neither

Click here to see answer by checkley77(12569)

Question 180651: Find the slope of the line containing the pair of points
(8,5) and (9,-7)
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Question 180976: Two hundred and seventy students wrote an exam in which 35 students got a higher mark than Paula and eight got the same mark as Pauls, which is 83%. Her percentile rank in the class is?
a. 85
b. 86
c. 83
d. 84
Click here to see answer by edjones(7569)

Question 181270: A baby weighs 9 pounds at birth and weighs 15 pounds six months later. Find the percentage increase in weight
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Question 181270: A baby weighs 9 pounds at birth and weighs 15 pounds six months later. Find the percentage increase in weight
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Question 149306: Place the following set of numbers in ascending order.
-2/5,1/6, 7/8, 5/9, 3/4

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Question 182058: Translate into algebric expression The product of 21% and some number. Type percentage as decimal

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Question 182100: V=1/3Bh for B
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Question 182099: Calculate the mean< median and mode of the following data set. Round values to the following tenth if the answers is not an integer.
21, 23, 10,14,15,23
Click here to see answer by Mathtut(3670)

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