Questions on Algebra: Proportions answered by real tutors!

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Question 186341: If one pump takes 12 minutes to fill a tank and another pump takes 20 minutes to fill the same size tank, how long would it take both pumps working together to fill one of the tanks?
Click here to see answer by feliz1965(151)

Question 186922: Going to Austin, Bill caught a ride for two-third of the total distance with a friend. He then took a bus for one-fourth of the total distance. He walked the remaining 10 miles to arrive at his destination. What was total distance of his destination?
Click here to see answer by josmiceli(9817)

Question 186933: You wish to mix wine with 25% alcohol and peach schnapps with 50% alcohol to obtain a different drink. How many liters of wine would you need to make 20 liters of the mixture with a 40% alcohol content?
Could you help me set up the table to solve this I'm completely lost and I don't know where to put what in the table and what to do with it afterword.
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Question 187058: The sum of a number and its reciprocal is 10/3. What is the number?
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Question 186970: A retail store buys a dvd player from a manufacturer for $140. The store then marks up the price by 115%. What is the retail price of the dvd player?
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Question 187331: I have 2 questions I can't seem to figure out, and I can't find examples to apply in the text. The first is a word problem...
"Barry paddles his boat to his campsite with a 4 km/hr current: It takes him 3 hrs. On his way back to the same point agisnt the current, the trip takes him 7 hours. What is the speed of Barry's boat in still water?:,(and why should I care?) I have tried finding a formula containing a current, and I can't find one...
Click here to see answer by josmiceli(9817)

Question 187422: a sheet of steel 8 1/4 feet long weight 325 pounds. A piece 2 1/2 feet long is sheared from the sheet. determine the weight of the 2 1/2- foot piece to the nearest whole pound.
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Question 188034: if 2cm=3kilometers, what is the approx. distance of 3.4 km?
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Question 188230: An artist wants her painting to be in the shape of a golden rectangle. if the length of the painting is 36 inches, then what should be the width?
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Question 188210: 16 is what percent of 34?
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Question 188210: 16 is what percent of 34?
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Question 188639: 50% of 3h is -30
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Question 188750: Sarah drives from Baltimore to Ocean City at an average speed of 65 miles per hour. If the distance is 160 miles, how long will the trip take?
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Question 188958: loni has read 25% of a book. if she has been reading for 5 hours how many more hours will it take her to complete the book
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Question 189104: what is 8100 divided by 66.6
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Question 189548: The difference between the prices of a coach ticket and a first class ticket is $135. If the first class ticket is 175% of the cost of a coach ticket what is the cost of the coach ticket?
Click here to see answer by ankor@dixie-net.com(15745)

Question 189944: How do I solve this proportion problem?
3 over 5 over b equals 8 over 5
I know I need to cross multiply somewhere I'm just not sure where?
Click here to see answer by cutepiscean5(19)

Question 190044: I need help on solving this propportio.
4/7=n/11
Click here to see answer by Mathtut(3670)

Question 190185: brand x has 4 oz. and cost 1.40
brand y has 6 oz. and cost 2.16
which brand is the beter buy?
Click here to see answer by jojo14344(1512)

Question 190185: brand x has 4 oz. and cost 1.40
brand y has 6 oz. and cost 2.16
which brand is the beter buy?
Click here to see answer by solver91311(17059)

Question 190264: The ratio of boys to girls in a classroom is 3:5. If the number of girls exceeds the number of boys by 8, how many boys and how many girls are in the class room?
Click here to see answer by sabrinawayjack(8)

Question 190276: To determine the number of bass in a lake, a conservationist catches 54 bass, tags them, and returns them to the lake. Later, 32 are observed and 8 are tagged. Estimate how many bass are in the lake.
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Question 189732: x/3 = 2/5
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Question 190412: The ratio of two numbers is 3:4. Their sum is to the sum of their squares as 7 is to 50. Find the numbers. (Thanks for your help.)
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Question 190581: Lydia plans to use a photocopy machine to increase the size of a small chart that she has made as part of her science project. The original chart is 4 inches by 5 inches. If she uses a scale factor of 5:11, will the chart fit on a sheet of 8 1/2 inches by 11 inches? Explain.
Click here to see answer by Alan3354(31487)

Question 190579: 1- The editor of the school newspaper must reduce the size of a graph to fit in one column. The original graph is 2 inches by 2 inches, and the scale factor from the original to the reduced graph is 8:3. Find the dimensions of the graph as it will apper in one column of the newspaper.
Click here to see answer by stanbon(57940)

Question 191046: Billie earned $412 for a 40 hour week. if she missed 10 hours of work last week, how much did she get paid?
Click here to see answer by nerdybill(7003)

Question 191190: The scale of two similar rectangles is 3:4. The area of the smaller rectangle is 207 square centimeters. What is the area of the larger rectangle?
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Question 191458: Find the product
(2x+1)(x-1)
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Question 191680: Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less does X receive compared to having the profits divided in proportion to the amounts invested by X,Y, and Z?
Click here to see answer by Mathtut(3670)

Question 191457: reduce to the lowest term and without negative exponents
4m^9/22m^5
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Question 191456: reduce to lowest term and answer with negative exponents
12-2*^2
Click here to see answer by Alan3354(31487)

Question 125576: eleanor can complete two skirts in 15 days. how long will it take her to complete eight skirts
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Question 191968: write 0.8% as a completely reduced fraction.
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Question 191967: write 0.8% as a completely reduced fraction.
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Question 191972: find the percent equivalent to the ratio 12 to 25
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Question 191970: write the reduced fraction and decimal form of 8.55%
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Question 191976: write the following percent as a fraction or mixed number 484%
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Question 191979: write the decimal and percent form of the fraction 4/5 (its a fraction)

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Question 191979: write the decimal and percent form of the fraction 4/5 (its a fraction)

Click here to see answer by Mathtut(3670)

Question 191978: henry loaned his uncle $680.00 at 17% for 195 days. How much simple interest did he earn consider 360 days for a year
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Question 191980: write the reduced fraction and percent form of 5.55
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Question 192131: For the following problem, you need to give a proportion whose solution gives the answer to the problem. You must name the variable that you used in the proportion.
A new virus is released on the internet; the administrator of a department's Local Area Network (LAN) is given five minutes by a manager to estimate the impact. The administrator samples 12 of the PCs connected to the LAN and finds that 7 are infected. Use a proportion to estimate the number of infected PCs if there are a total of 216 PCs connected to the LAN. Thanks!
Click here to see answer by stanbon(57940)

Question 192145: I need to give a proportion whose solution gives the answer to the problem. You must name the variable that you used in the proportion. Please show work.
Thank You
A psychologist bills her patient $300 an hour, her care requires 17 hours
to complete. How much will the patient owe the psychologist? excluding tax.
Click here to see answer by Mathtut(3670)

Question 192130: For the following problem you need to give a proportion whose solution gives the answer to the problem. You must name the variable that you used in the proportion.
A lawyer bills her clients $300 per hour of service. If a client's case requires 17 hours to complete, use a proportion to calculate how much the client will owe the lawyer (excluding tax)
Thank You to all!
Click here to see answer by RAY100(1637)

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