Questions on Algebra: Proportions answered by real tutors!

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Question 641366: Please help me solve this [[[ (-1/x) + (2/6x) = -2 ]]]
Click here to see answer by Alan3354(69443)

Question 636025: Can a fraction(s) be in a proportion?
Click here to see answer by esalsve(3)

Question 642323: On an architect's blueprint, 1 inch corresponds to 2 feet. Find the length of a wall represented by a line 4 1/2 inches long on the blueprint.
The length of the wall is ___ ft.
Click here to see answer by solver91311(24713)

Question 642461: What is the answer to y
8 over 15 = y over 50
Click here to see answer by jim_thompson5910(35256)

Question 642608: If Joan read 75 pages in 4 hours how long will it take her to read 250 pages?
Click here to see answer by stanbon(75887)

Question 644058: How much antifreeze must be added to 20 L of a 60% solution to make a 75% solution?
Please help?
Click here to see answer by ankor@dixie-net.com(22740)

Question 646645: In a class,2/3 of the students are wearing black shoes and 1/4 wears brown shoes.If 4 of them wear neither black nor brown shoes,how many students are there in the class?
Click here to see answer by josmiceli(19441)

Question 646798: 1. If 3x = 2x � 4, evaluate 4x + 2.

2 Translate into an equation and solve.
The difference between a number, n, and twenty-seven is ten.
3.
An adult and a child are on a seesaw that is 14 ft long. The adult weighs 186 lb and the child weighs 74.4 lb. How many feet from the child must the fulcrum be placed so that the seesaw balances? (Round your answer to the nearest whole number.)
1 ft
Click here to see answer by ewatrrr(24785)

Question 648047: i really need your help on this i tried but ............ the question says share $873 between Peter and John so that Peter gets 3 1/2 times more how much does each get pliz im beggin
Click here to see answer by Earlsdon(6294)

Question 648773: 4r^2 +21r+5
factor please

Click here to see answer by jim_thompson5910(35256)

Question 649612: A factory produces 6 motorcycles in 9 hours. How many hours will it take to produce 16 motorcycles at this rate?
Click here to see answer by ewatrrr(24785)

Question 650402: 8y is 40% of what number?
Click here to see answer by Alan3354(69443)

Question 652069: how do I find a proportion using points on a graph?
Click here to see answer by MathLover1(20849)

Question 653298: A man weighs 6 1/4 tall and weighs 226 pounds. The ideal weight chart indicates that his maximum dismable weight is 204 pounds. What percentage overweight is this man?
Click here to see answer by stanbon(75887)

Question 654034: The Geology Club of Gilroy Middle School took a field trip to Nisene Marks State Park to visit the epicenter of the 1989 earthquake. There were 3 adults for every 8 students on the field trip. A total of 44 people went on the field trip. How many adults were on the field trip? (Hint: a table may help)
Click here to see answer by lwsshak3(11628)

Question 654616: To get ready for a field trip,students & adults were put into groups. For every 8 students in a group,there are 3 adults. In total,in all the groups,there are 48 students. How many adults are also on the field trip?
Click here to see answer by checkley79(3341)

Question 655294: solve the proportion for x: x/8=5/3
Click here to see answer by rfer(16322)

Question 656255: If all men had identical body types their weights would vary directly as the cube of their heights. Robert Wadlow was 8 feet 11 inches tall (107 inches) at the time of his death. If a man who is 5 feet 10 inches tall (70 inches) with the same body type as Mr Wadlow weighs 170 pounds, what was Mr Wadlows weight?
This is supposed to be a proportion problem and I can't get the equation.
The answer is approximately 607 pounds. Can you help please? Sorry if this is a duplicate post. I thought I made a mistake by not being logged in.
Click here to see answer by solver91311(24713)

Question 656363: A treasure map is drawn to a scale of 1 inch =5 miles. On the map ,the distance between Point A and X-marks-the-spot is 8 1/5. How many actual miles does this represent?
Click here to see answer by checkley79(3341)

Question 656357: A treasure map is drawn to a scale of 1 inch =5 miles. On the map ,the distance between Point A and X-marks-the-spot is 2 3/5. How many actual miles does this represent?
Click here to see answer by checkley79(3341)

Question 656370: a giraffe can run 32 miles per hour. What is the speed in feet per hour

Click here to see answer by solver91311(24713)

Question 656376: A treasure map is drawn to a scale of 1 inch =5 miles. On the map ,the distance between Point A and X-marks-the-spot is 4 2/5. How many actual miles does this represent?

Click here to see answer by rfer(16322)

Question 656378: A treasure map is drawn to a scale of 1 inch =5 miles. On the map ,the distance between Point A and X-marks-the-spot is 1 4/5. How many actual miles does this represent?

Click here to see answer by rfer(16322)

Question 656524: Michael bought a 1:45 scale model of a sports car. The length of the model is 85 mm. How long is the actual car?
Is this saying that 1 mm on the scale model is 45 mm on the actual car. So is the length of the car 45mm times 85 mm? I am having problems seeing a car in mm.
Click here to see answer by ankor@dixie-net.com(22740)

Question 656672: What is the answer to 38/19=n/20
Click here to see answer by lynnlo(4176)

Question 656965: 9m=5n Find the ratio m:n
Click here to see answer by stanbon(75887)

Question 657987: solve the proprstion xOver 100= 80 Over 5
Click here to see answer by ewatrrr(24785)

Question 658216: How would you solve this proportion x-4 over 2 = 3 over 8
Click here to see answer by solver91311(24713)

Question 659016: Are 12 items that cost a total of $1.68,a better buy than 16 items that cost a total of $2.18?
Click here to see answer by jim_thompson5910(35256)

Question 659176: while running for 40 minutes, you burn calories at a rate of 300 calories per hour. How many calories did you burn?
Click here to see answer by Aqilah(1)

Question 659605: The odometer reading on your car is 23,134.8 miles at the start of a trip. When you get your destination,the odometer reads 23,589.1 & you fill your car with 15.4 gallons of gas. What gas mileage did your car get?
Click here to see answer by ReadingBoosters(3246)

Question 660765: x-5/10=x-2/7
Click here to see answer by jim_thompson5910(35256)

Question 661787: my daughter is having problems solving this question and i have tried but am not sure that i am right.Help me solve this equation: 3/r = 18/20 I got 3 with a remainder of 6
Click here to see answer by ankor@dixie-net.com(22740)

Question 662668: I don't know if this is a proportion or not but I don't understand:
1/3+1/5=x/30
Thanks
Click here to see answer by lwsshak3(11628)

Question 662788: Two angles of a triangle are equal. The third angle is 20 degrees more than the sum of the other two angles. Find all three angles.
Click here to see answer by ewatrrr(24785)

Question 662869: When you get to the animal park,you go into the gift shop. They have different sized posters of animals in the park. All the posters in the shop are proportional. The smallest poster is 12 inches wide & 15 inches tall. The largest poster is 32 inches wide. How tall is the largest poster?
Click here to see answer by solver91311(24713)

Question 662872: 7/9=b/b-10
Click here to see answer by ReadingBoosters(3246)

Question 663321: hello i need help on this question.
a car driven 240 miles in 12 hours. what is the rate in miles per hour? in hours per mile? i got the miles per hour is 20. i just cant figure out how to find hour per mile.
jim
Click here to see answer by rfer(16322)

Question 25975: 4 pencils and 2 pens cost $1.08 6 pencils and 5 pens cost $2.22 find the cost of each pen and pencil

Click here to see answer by kevwill(135)

Question 665285: 36 miles per hour

Click here to see answer by lynnlo(4176)

Question 665423: The boy:girl ratio in a school is 4:5.
If there are 225 students, how many girls are in the school?
Thanks.
Click here to see answer by unlockmath(1688)

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, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265