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

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Question 547498: A coin bank contains only dimes and quarters. The ToTal value of The coins in The bank is $3.70 . If the dimes were quarters and quarters were dimes, the total value of the coIns would be $2.95 . Find the number of quarters in the bank.
Click here to see answer by mananth(12270)

Question 547724: The ratio of girls to boys in Mr. Glickman's class is 10:38.
The total in his class is 25. How many of these are girls?
Click here to see answer by mathie123(224)

Question 547852: A sold an article to B for a gain of 10%.B sold it to C for a gain of 15%.If C paid €25.30,how much did A and B pay for it?
Click here to see answer by josmiceli(9650)

Question 547859: 8% of a population left a town.If the population is now 2852,find the population before the 8% left.How many people left town?
Click here to see answer by mathie123(224)

Question 548054: Paul found 18 roses for $10.00. What is the ratio in the simplest fraction form?
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Question 548224: street sign is 117 inches tall. How tall is it in feet and inches?
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Question 547925: My question:
When five new girls joined a class, the percent of girls increased from 40% to 50%. What is the number of boys in the class?
What I tried:
1.If there is 50% girls in the class, then there is 50% boys, so however many girls are in the class, is how many boys are in the class. 2.I said that the ORIGINAL total class accumulation, was 45 kids, because if there is 25 boys in the class, and 20 girls in the class, the boy population is 60%, and the girl's is 40%. However, I said that if I increase the girl population by 10%, I would need to add five girls, so now there is 25 girls, and 25 boys (50% boys and girls) What am I doing wrong? Can you help me solve it? 3. My teacher said this was incorrect, and I got a 5/10 on this problem; 3 for work, 1 for solution, and 1 for check. If you could help me, I would appreciate it! Thanks a lot!!!
Click here to see answer by ankor@dixie-net.com(15624)

Question 548309: If the cost of a particular computer program is 1/9 of the cost of a personal computer without the program and if the computer plus the program costs $810.00, how much does the program alone cost?
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Question 548016: Twenty-four tropical fish are on sale, some selling for $6 each and the rest selling for $10 each. Anyone buying all the cheaper fish would spend as much as anyone buying all the more expensive fish. How many cheaper fish are on sale?
Click here to see answer by scott8148(6628)

Question 548470: The average (arithmetic mean) of the test scores of Mrs. Hilgarts's first period class of x Algebra 2 students is 74. The average of the test scores of Mrs. Hilgart's fifth period class of y Alegbra 2 students is 88. When the scores of both classes are combined, the average is 76. What is the vlaue of x/y?
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Question 548771: Binomial problems: Mean and standard deviation
Not all visitors to a certain company's website are customers or potential customers. In fact, the company's executives estimate that about 5% of all visitors to the website are looking for other websites. Assume that this estimate is correct and that a random sample of 50 visitors to the website is taken.
a)Estimate the number of visitors in the sample who actually are looking for the company's website by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.
b)Quantify the uncertainty of your estimate by giving the standard deviation of the distribution. Round your response to at least three decimal places.

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Question 548929: My grade is 75%. How well do i have to do on my final that is 10% of my grade to receive a B? and A?
Thank you
Click here to see answer by mathie123(224)

Question 548956: Wonderful elxpanation of facts available here.
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Question 549880: Half the books you own are mysteries. One third are nonfiction. Theother four books are science fiction. How many of your books are mysteries?
Click here to see answer by josmiceli(9650)

Question 549908: Solve: (X/X+2)-(1/3)=-(2/x+2)
I tried to multiply all three of them by 6X+6, but it didn't work for me. :(
Click here to see answer by prateekagrawal(56)

Question 549959: Perimeter of a sign. The perimeter of a rectangular sign is not to exceed 50ft. The length is to be twice the width. What width's will meet these conditions?
Click here to see answer by mananth(12270)

Question 549957: Pass completions. At one point in a recent season, Peyton Manning of the Indianapolis Colts has completed 357 passes. This was 62.5% of his attempts. How many attempts did he make?
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Question 549958: Race time. The equation R=0.028t+20.8 can be used to predict the world record in the 200-m-dash, where R is the record in seconds and t is the number of years since 1920. In what year will the record be 18.0 seconds?
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Question 550034: 60.912 is 56.4% of what number?
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Question 549705: If the ratio of a score to the the number of words typed correctly is 75:200 how could you write an equation that can find the score for x words typed correctly?
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Question 550104: I have 11 classes. In 6 classes I received an A, in 4 classes I received a B and in 1 class I receive a C. I tried dividing each into 100%, but something is not working. My answer came out to 60% of A's, 40% of B's and 1% for C's. But how can this be when the total is 100%? Please tell me if I did this right or how do I figure out what percentage of A's, B's and C's I received?
Thank you
Click here to see answer by josmiceli(9650)

Question 550540: Use the five step for problem-solving to answer the following questio.
Angle P and Angle Q are supplementary angles. If, Angle Q is ten less than 4 times Angle P what are the measures of the angles?

Thank you in advance for your help.
Click here to see answer by mananth(12270)

Question 550775: A sum of money was to be shared among three persons P, Q & R in the ratios of 2:5:9. If R receives $2,170 more than P. Calculate (I) the sum of money shared. (II) P's share. (III) % of the total that Q receives.
Click here to see answer by mananth(12270)

Question 551240: After a 30% increase, Alayna now earns $15.60 per hour. What was her hourly wage before the increase?
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Question 551240: After a 30% increase, Alayna now earns $15.60 per hour. What was her hourly wage before the increase?
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Question 551239: The wholesale price of a pair of jeans is $16.00. If the jeans are marked up by 35% what is the retail price?
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Question 551250: If Jennie's closet, 3 out of every 7 shirts are the color black. What percent of her shirts are black? Round your answer to the nearest tenth.
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Question 551248: Chris rent a booth at a flea market for $120 for one day. At the flea market, Chris sells picture frames each of which cost him $5.00. If Chris sells each picture frame for $11, write an inequality that represents the number of picture frames,p, he must sell to make a profit of at least $275 for that day.
Click here to see answer by TutorDelphia(193)

Question 551231: A dress is on sale for 20% off the original price. If Martha paid $96 as the sale price, what was the original price of the dress?
Click here to see answer by josmiceli(9650)

Question 551244: Jean went to Macys to buy a new set of sheets that was priced $89.00. Jean had two coupons to use for the sheets. One coupon was for a 20% discount and the other coupon was for $5.00 off. The cashier takes the 20% off discount coupon first and then deducts the $5.00.
Part A
How much does Jean pay for the set of sheets?
Part B
Would the price of the sheet been different if the cashier used the $5.00 off coupon before the 20% discount coupon?
Click here to see answer by josmiceli(9650)

Question 551359: ratio of water and acid in battery

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Question 551564: Hi, can you help me with this.

Draw the diagram after working this problem.
Harding and Jack found that 8 percent of their number was 72. What was their number?
Click here to see answer by TutorDelphia(193)

Question 551559: In the remuda, the ratio of piebalds to mottled mares was 7 to 11. If there were 756 remounts in the remuda, how many were piebalds? Can you help me solve this.
Thanks much!
Click here to see answer by ankor@dixie-net.com(15624)

Question 551582: Can you help me solve
-(-3)^3-[-2]-2^2-(-K-3)=-4^2-(3k-4)
thank you!
Click here to see answer by Maths68(1474)

Question 552032: The ratio of the number of right-handed students in school to the number of left-handed students in school is 9 : 1. There are 360 right-handed students in school. How many left-handed students are in school?
Click here to see answer by edjones(7569)

Question 552076: Mike withdrew $32 from his bank account at an ATM machine. The transaction slip said his balance was $289.14. What was his previous balance? Write an equation
Click here to see answer by fcabanski(872)

Question 552100: 1m of denim costs £2.50, so how much would 1cm cost?
Click here to see answer by JBarnum(2044)

Question 552442: how do you get the answer to jen and heather went to lunch when the bill came jen discovered that she had only 8.00 heather had enough money to pay the other part 3/5 of the bill
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Question 552610: Quartz crystals are being sold by weight for 18 1/2 cents per gram. What is the cost of a crystal weighing 44 grams?

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Question 552637:
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Question 552640: The lenght of a rectagle is 60 in.and its width is 48 in. Find the ratio of the lenght to the width
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Question 552613: Jerry makes a purchase that allows him to spread the payments over time. The total purchase is $1,200.00. He makes a 25% down payment, and then pays the rest in three equal, interest-free monthly installments. How much is each monthly installment?
Click here to see answer by josmiceli(9650)

Question 552736: Jack is on a 5 mile hike. He has already hiked 3 1/4 miles. How many miles does he have left to hike? I do not understand how many more miles left there is or what strategies to get it to help me later on.
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Question 553075: WHAT IS 20% OF 56

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