Questions on Word Problems: Problems on percentages, ratios, and fractions answered by real tutors!

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Question 438380: there are 17 males and 23 females. two students will be selected what is the probability that one student is male and one student is female
Click here to see answer by ewatrrr(10682)

Question 439334: A house with an original value of $180,000. increased in vlue to $220,000. in 5 years. What is the ratio of the increase in price to the original price.

$220,000/$180,000 = 11/9
Click here to see answer by stanbon(57224)

Question 439390: The ratio of YES votes to NO votes in an election was 5 to 6. How many totals votes were cast if there were 3945 YES votes cast?
Click here to see answer by shantalboodram(15)

Question 439680: At a recent baseball game, the home team was losing so badly that 25% of the 4,280 fans left after the seventh inning. By the beginning of the ninth inning, another 50% of the remaining fans had left.
•How many fans were left in the stadium at the beginning of the ninth inning?
•What percentage of the 4,280 fans had left by the beginning of the ninth inning?
(im just a bit lost as to how to figure out the 2nd part of the question my work is below any help would be greatly appreciated)thank you again:)
PART A
4,280 * .25 = 1,070 --> 4,280 - 1,070 = 3,210
(.25)=25%
3,210 is the number of fans left after the seventh inning.
at the end of 7th inning 3,210 fans are left 50% leave by the begining of the 9th inning
3,210 * .5 = 1,605 remaining fans at the end of the 9th :D

Click here to see answer by solver91311(16868)

Question 439571: How many liters of a 10% alcohol solution must be mixed wih 40L of a 50% solution to get a 40% solution
Click here to see answer by jorel1380(2518)

Question 439772: Olga Fjord sells computers. She earns a 4.5% commission on sales. How much must she sell in order to earn $9000?
Click here to see answer by nerdybill(6948)

Question 439833: To make a 15ft by 20ft section of a yard into a garden. They plant flowers in 2/3 of the garden and vegetables in the rest of the garden. How many square feet of vegetable garden will they have?
Click here to see answer by jorel1380(2518)

Question 440110: Tom has taken 5 of the 8 equally weighted tests in his US History class. He has an average score of 78.0 points. How many points does he need to earn on the 6th test to bring his average score to 80 points?
Click here to see answer by ewatrrr(10682)

Question 440332: when a number is decreased by 30% the result is 140.what is the number
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Question 440449: In a certain fresh water pond, exactly 1/9 of a school of trout have green scales. If 7 of the trout have green scales, how many fish are in the school?
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Question 440453: this season, mia's soccer team won9 games and lost 5 games. whatis the ratio of the number of games mia's team won to the total number of games that the team played?
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Question 440556: The capacity of an elevator is either 20 children or 15 adults. If 8 children are currently in the elevator, how many adults can still get on?
Click here to see answer by edjones(7569)

Question 441222: I am confused with this since I do not have the number of times the event occurred. It is probably simple but I cannot figure it out Thanks you
If the probability an event will occur is 1/2 determine
a) the probability that the event will fail to occur.
b) the odds against the event occurring.
c) the odds in favor of the event occurring.
Explain your answer.

Click here to see answer by stanbon(57224)

Question 441287: The sum of two consecutive od numbers is equal to 43 more than 1/3 the larger number.Find both numbers and show your work.
Click here to see answer by josmiceli(9650)

Question 441269: There were 24 students in Mrs.Terry's class. 1/6 of the students were born in the first 4 months of the year. 1/2 of the remaining students were born in the months of May through Augest.There are no September birthdays, but 1/5 of the remaining birthdays are in October. If 1 student was born in November, how many December birthdays are there? Show your work.
Click here to see answer by rwm(914)

Question 441803: p is inversely proportional to v
p=18 when v=24
express p in terms of v
Click here to see answer by stanbon(57224)

Question 442194: Is 2 x 1/3 equal to 2 1/3 why or why not
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Question 442391: Please help with this type of question that does not give the total number of children. . .
A Teacher gives 2 tests to her class. 30% of the class passed both tests and 45% of the class passed the first test. What percent of those who passed the first test also passed the second tes
Click here to see answer by josmiceli(9650)

Question 442597: A sign above a sweater says "Take an additional 50% off." The price tag shows a price that is 40% off the regular price. What percent of the regular price is the discounted price (the price after both discounts)?

Click here to see answer by rfer(12646)

Question 442676: Find the variation constant and an equation of variation where y varies inversely as x and y=3 when x = 20.
Click here to see answer by robertb(4012)

Question 442746: In a certain town, the ratio of children to adults is 3 to 7. What percentage of the town's population is adults?
I took 3 divided by 7 to get approximately 43% and then subtracted that from 100 percent. But the answer is 70%. Why??
Click here to see answer by stanbon(57224)

Question 442747: For inventory purposes, a company assigns a 3 character code to each item it produces. The first character of the code must be a letter from the 26 letter english alphabet. The second and third character must be a digit from 0-9 but cannot be repeated. How many different 3 character codes can be assigned?
I have no idea how to do these anymore. I remember learning them when I was in like 6th grade but I am lost.
Click here to see answer by stanbon(57224)

Question 442781: At the end of the day, a storekeeper had $1070 in the cash register, including both the sale of good and the sales tax of 7%. What amount of sales tax had been collected?
Click here to see answer by rwm(914)

Question 442869: tom can run 3 3/8 miles in 17 1/4 minutes, how long, on average,did it take him to run 1 mile
Click here to see answer by bsitzmann(2)

Question 442868: a gardener ordered 3/4 ton of mulch for his garden.he asked for it to be dumped into 5 piles of equal size in garden. how much mulch will be in each pile
Click here to see answer by jorel1380(2518)

Question 442860: jody bought 2 7/16 pounds of hamburger priced at 1 1/2 dollars per pound. how much did she pay
Click here to see answer by jorel1380(2518)

Question 442858: a jelly jar holds 8 1/2 ounces of jelly.the pot being used to make the jelly holds 48 ounces of jelly . how many full jars of jelly can be filled from the 48 ounce pot
Click here to see answer by jorel1380(2518)

Question 443173: the sum of the digits of a two digit number is 13. the number formed by reversing the digits is 27 more than the original number. find the original number
Click here to see answer by swincher4391(726)

Question 443446: The average of two quiz scores is 81. If one quiz score is six more than the other quiz score, what are the two quiz scores
Click here to see answer by ankor@dixie-net.com(15624)

Question 443518: How many points per question if the test consists of 65 questions?
Click here to see answer by Alan3354(30967)

Question 443549: What is the last number in this sum?
1 + 3 + 5 + ... + ? = 10,000
Click here to see answer by edjones(7569)

Question 443715: find the ratio of the following.
213 days to 156 days.
Click here to see answer by josmiceli(9650)

Question 443715: find the ratio of the following.
213 days to 156 days.
Click here to see answer by MathLover1(6614)

Question 443871: Susan makes $6 per hour on a 40 hour worksheet plus $9 per hour for overtime. If her pay is $294, how many over time hours did she work?
Click here to see answer by josmiceli(9650)

Question 444980: Mark has 250 pencils.46percent of the pencils are yellow and the rest are red how many red pencils are there?
Click here to see answer by jorel1380(2518)

Question 445659: A shop sells compact disks for $18 per piece. If each disk costs $10 to the shop owner how much profit percent does the shop owner earn?
Click here to see answer by rfer(12646)

Question 446162: oky so im practicig for the cst by using the cst release qestion but im havng trouble with worproblems and I've managed to solve some so far but therese that is !?!?
An object that is projected straight downward with initial velocity "v" feet per second travels a distance "s=vt+16t^2 ", where t=time in seconds. If Ramón is standing on a balcony 84 feet above the ground and throws a penny straight down with an initial velocity of 10 feet per second, in how many seconds will it reach the ground?
A 2 seconds
B 3 seconds
C 6 seconds
D 8 seconds
I've tried using the formula v=d/t like in science but this equation confuses me: s=vt+16t^2

Click here to see answer by mananth(12270)

Question 446217: A silversmith mixes 60g of alloy that is 50% silver with 200g of another silver alloy. the resulting alloy is 65% silver. find the percent of silver in the 200g of alloy.
Click here to see answer by rwm(914)

Question 446284: Trains A nad B are traveling the same direction on parallel tracks. Train A is traveling at 100 MPH and train B is traveling at 110 MPH. Train A passes a station at 6:25 am. If train B passes the same station at 6:37 am, at what time will train B catch up to train A?
Click here to see answer by jorel1380(2518)

Question 446260: how many pounds of candy that sells for $8 per pound must be mixed with 4lbs or candy that sells for $12.50 per pound to create a mixture that sells for $9 per pound?
Click here to see answer by jorel1380(2518)

Question 446321: if you have a 1 in 18 chance of drawing a blue chip and then only if you draw a blue chip you have a 1 in 15 chance of winning
Click here to see answer by Alan3354(30967)

Question 446252: a financial manger has determined that the cost per unit for a small ratio is $12 and that the fixed costs per month are $4500. find the number or radios produced during a month in which the total cost was $13,500. use the equation T=U N+F, Where T is total cost, U is the cost per unit, N is the number of units produced, and F is the fixed costs.
Click here to see answer by jorel1380(2518)

Question 446233: how many ounces of pure water must be added to 60oz of a solution that is 20% water to make a solution that is 30% water?
Click here to see answer by jorel1380(2518)

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