# Questions on Algebra: Proportions answered by real tutors!

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 Algebra: Proportions Solvers Lessons Answers archive Quiz In Depth

 Question 348290: The nutrition information on the cereal box says that a 1/3 cup serving provides 140 calories and 6 grams of fiber. At that rate find how many calories and grams of fiber are in 1/2 cup serving.. Calories?? Fiber?? Click here to see answer by josmiceli(9697)

 Question 348388: Carla runs 4 miles every day. she jobs from home to the school track, which is 3/4 mile away. she then runs laps around the 1/4 mile track. carla then jobs home. how many laps does she run at the school? Click here to see answer by checkley77(12569)

 Question 348757: Rick earns \$500 less than 3 times as much as Jim. If their combined salary is \$49,500, how much do they each earn? Click here to see answer by checkley77(12569)

 Question 349019: In the proportion 5/h-k/14, what happens to the value of h as the value of k increases....please explain....Thanks Click here to see answer by jim_thompson5910(28598)

 Question 349603: How much water should be added to 64 ounces of a 10% salt solution to make a 2% salt solution? Click here to see answer by Fombitz(13828)

 Question 349822: how do i express the rate in miles per hour? Click here to see answer by Alan3354(30993)

 Question 349987: A saltwater solution is made by dissolving 3 pounds of salt in 10 gallons of water. At this rate, how many pounds of salt are needed for 25 gallons of water. Click here to see answer by mananth(12270)

 Question 350002: The ratio of male students to female students at a certain university is 5 to 4. If there is a total of 6975 students, find the number of male students and the number of female students. Click here to see answer by mananth(12270)

 Question 350020: If Soc can paint 100 easter eggs in 165 minutes and Ngu can paint 100 easter eggs in 205 minutes and Fawn can paint 100 easter eggs in 120 minutes how long will it take for the three of them working together to paint 100 easter eggs ? Click here to see answer by mananth(12270)

 Question 350203: For most flying creatures, the length of thewing varies inversely as the number of wingbeats per second. A dragonfly has a winglength of 1.6 inches and a wingspeed of 45 times per second. If a bee has a wingspeed of 200 beats per second, what is the lenghth of a bee's wing? (Simply work the problem through; you do not need a 5-step solution.) HELP! I don't know what to do!! Please!! Click here to see answer by Fombitz(13828)

 Question 350183: Solve each proportion and then check. x/12-x = 5/15 Help me please, I am so stuck! Click here to see answer by Fombitz(13828)

 Question 350640: Jellyfish are 19/20 water. If you have a 300 pound jellyfish (and yes, some do grow to be that big!) what is the weight of the water it contains? (Show ALL your work, but you do not need a 5 step solution.) HELP me me please!!!!!!!! Click here to see answer by nerdybill(6963)

 Question 350887: If jim can run 100m in 13.4 sec. and bill can run 100m in 14.1 sec. How much head start would bill need to finish at the same time? I know ther answer, but need to write it out in an equation. Click here to see answer by ankor@dixie-net.com(15660)

 Question 351064: I am horrible at math, How do you find proportions and ratios? Click here to see answer by mananth(12270)

 Question 351768: In a chemistry class, 3 liters of 4% silver iodide solution must be mixed with 10% solution to get a 6% soluction. How many liters of the 10% solution are needed? Click here to see answer by Fombitz(13828)

 Question 351766: A car traveling 62 miles per hour passes a bus traveling 55 miles in the same direction on the highway. If they maintain their speeds,how long will it take them to 10 miles apart. Click here to see answer by checkley77(12569)

 Question 351990: Im not sure how to do proportions but if you can show me some work or somethin that will make me understand i will appreciate it this is one of the questions....3 over z= 1 over 8 Click here to see answer by rfer(12670)

 Question 352068: On a map, 1/3 inch equals 15 miles. The distance between two towns on a map is 3 2/3 inches. How many miles are actually between the two towns? Click here to see answer by mananth(12270)

 Question 346906: A mole is a unit of measurement used in chemistry. The masses of one mole of three elements are: Hydrogen---mass of one mole is 1.008 grams Carbon----mass of 1 mole is 12.011 grams Oxygen---mass of 1 mole is 15.999 grams a 100 gram sample of ascorbic acid conatins 4.58 grams of hydrogen. To the nearsest tenth, find the number of moles of hydrogen. The ratio of moles of hydrogen to moles of carbon in ascorbic acid is 4:3. How does this ratio compare with the ratio of moles of hydrogen to moles of oxygen in ascorbic acid? Click here to see answer by angels1377(1)

 Question 353270: Could you help me with making a proportion,to help find sales tax? If a dress costs \$22.50 and the sales tax is 7.5% Click here to see answer by Alan3354(30993)

 Question 353365: A particular fraction is equivalent to two thirds. The sum of its numerator and denominator is 105. What is the numerator of the fraction? Show your work Click here to see answer by edjones(7569)

 Question 353154: John can do a piece of work in 8 days and peter can do the same piece of work in 6 days.They work together on it for two days and then peter stops working altogether.How long will it take for john to complete the remaining part of the work by himself? Click here to see answer by Fombitz(13828)

 Question 353893: 10. If the total cost of x apples is b cents, what is a general formula for the cost, in cents, of y apples? A. b xy B. x by C. xy b D. by x E. bx y Click here to see answer by jim_thompson5910(28598)

 Question 354088: The scale on a map indicates that 1.5 centimeters represent 200 miles .if the distance on the map between Norfolk, Virginia , and Atlanta, Georgia , measures 2.4 centimeters , how many miles apart are the cities ? Click here to see answer by mananth(12270)

 Question 354869: There are four cars entered into a pinewood derby race. In how many different orders can they cross the finish line? a) 10 b) 16 c) 4 d) 24 Click here to see answer by dlh(17)

 Question 355316: A flagpole casts a 12-meter long shadow on level ground and the same instant that a meter stick casts a shadow 80 centimeters long. How tall is the flagpole? a. 9 meters b. 15 meters c. 18 meters d. 20 meters Click here to see answer by edjones(7569)

 Question 355610: I am having trouble getting the correct answer to this problem. The problem is 1/x+3 = -2x/x+5 This is how I worked it. The answer is -5/2, -1 but I keep getting -5/6 x+3(-2x) = x+5(1) x-6x = x+5 -6x = 5 divide through by -6 and get -5/6. What am I missing? Click here to see answer by unlockmath(1603)
 Question 355610: I am having trouble getting the correct answer to this problem. The problem is 1/x+3 = -2x/x+5 This is how I worked it. The answer is -5/2, -1 but I keep getting -5/6 x+3(-2x) = x+5(1) x-6x = x+5 -6x = 5 divide through by -6 and get -5/6. What am I missing? Click here to see answer by mananth(12270)

 Question 355621: This is a word problem. I tried to use the formula for inverse variation, y=k/x but I am still not getting the correct answer and I think it is because I do not know how to plug the #s in correctly. Question: The length of time that a given # of bushels of corn will last when feeding cattle varies inversely with the # of animals. If x bushels will feed 25 cows for 10 days, how long will the feed last for 10 cows? I know the answer is 25 days, I just do not know how to get it. Thanks! Click here to see answer by edjones(7569)

 Question 355798: If a company provides 1 1/4 vacation days to its employees every month, how many vacation days does an employee get every year? Click here to see answer by ewatrrr(10682)

 Question 355812: I do not see how you can possibly get a numeral from this question. The answer id 12 but I have no clue how to get it. "The volume of a rectangular solid varies jointly with its length, width and height. If the length is doubled, the width is tripled and the height is doubled, by what factor is the volume multiplied?" Thanks for any help you can provide Click here to see answer by sudhanshu_kmr(1152)

 Question 355810: I cannot figure out how to get the answer to this question. Under constant temperature, the volume occupied by a gas is inversely proportional to the pressure applied. If the gas occupies a volume of 20 cubic inches under pressure of 6 lbs per square inch, find the volume when the gas is subjected to a pressure of 10 lbs per square inch. If you could please work this out for me to show how to get the answer I would apprecicate it. Thanks, Click here to see answer by scott8148(6628)

 Question 356251: If the length of a plastic plane is 12 inches long and the length of the actual plane is 72 feet long. what is the model of the dimension? Click here to see answer by ewatrrr(10682)

 Question 356358: Latoya drove 440 miles using 18 gallons of gas. At this rate, how many gallons of gas would she need to drive 330 miles Click here to see answer by nyc_function(2733)

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