Questions on Algebra: Proportions answered by real tutors!

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Question 631235: Compare column A to B
A= √π % of (700/√π) B = 7

Click here to see answer by KMST(1868)

Question 631767: The ratio of boys to girls in a class is 4:5.If two are absent,the ratio of boys to girls becomes 8:9.How many boys are there in the class?
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Question 631770: in a certain company, the ratio of the number of female employees to teh number of males employees is exactly 3:4. what is the total number of employees?

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Question 631894: the children to adult ratio is 7 to 2 and if there is 108 people in the zoo how many children are there
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Question 632362: It takes Kurt twice as long to earn $60 as it takes Paul to earn $40.What is the ratio of Kurt's pay per hour to Paul's pay per hour?
Click here to see answer by rapaljer(4667)

Question 632690: 741/3
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Question 633043: the sum of three consecutive numbers is 63.find the product of extremes.
Click here to see answer by richard1234(5390)

Question 633327: I have 20 gallons of a liquid soap and I want to make a 3% solution. How many gallons of water will it take?
Click here to see answer by josmiceli(9657)

Question 633614: p/q=r/s, then p/q+t/u = r/s+t/u
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Question 633840: What is the value of p in the equation
(p-5)/12 = (p-3)/7?
Which answer is it?
a. 1/5
b. 1/4
c. 2/3
d. 1/2

Click here to see answer by Alan3354(30982)

Question 634113: Miguel passed seven of his history-class quizzes and failed three. The fraction of quizzes he passed is correctly expressed as:
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Question 634780: The perimeter of a heptagon is 9a^2s ft. The perimeter of a triangle is 6a^6b^2s ft. Find the ratio of the perimeter of the heptagon to the perimeter of the triangle.
Click here to see answer by jsmallt9(3296)

Question 634967: I have tried many different ways to solve this equation and I just can't seem to get it right:
5/3x-8=x/x+2
I know I have to cross multiply but when I do that I end up with this:

5x+10=3x^2-8x
I don't really know where to go from there. If I add 8x to 5x then it seems like that's all the simplifying I can do, unless I subtract 3x^2 and somehow turn it into a quadratic formula, but that also doesn't seem right. I also tried to see if I could just cross out the x's on x/x+2 but then that would leave me with 0/2 (simply just a zero) and then I would just have 5/3x-8. Where would I go from there? And I don't think that the answer is still supposed to have variables, I think that it is a number, but I just don't see how that is possible. Please help! Thank you so much.

Click here to see answer by Alan3354(30982)

Question 635103: If X/(b+c-a) = Y/(c+a-b) = Z/(a+b-c) then (b-c)x + (c-a)y + (a-b)Z is?
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Question 635147: approximaetly 160650 of americas 945000 restaurants are pizza resturants.determine the percent in america that are pizza resturants.
Click here to see answer by checkley79(3050)

Question 635832: 18. One triangle has sides measuring 3”, 6”, and 9”. A similar triangle has sides measuring 5” and 15”. Find the length of the missing side.
I need help thanks so very much!
Click here to see answer by jsmallt9(3296)

Question 636116: 3/7=r/9
Click here to see answer by jim_thompson5910(28503)

Question 636025: Can a fraction(s) be in a proportion?
Click here to see answer by KMST(1868)

Question 636025: Can a fraction(s) be in a proportion?
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Question 636025: Can a fraction(s) be in a proportion?
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Question 637892: Debbie and kevin share profits in the ratio of 4:3 they admit jessie into the partnership for 1/5 share of the profits.
Debie and Kevin will continue to share profits in the same ratio as between themselves.
What will be the profit sharing ratio of the new partnership of Debbie, Kevin and Jessie?
Click here to see answer by josmiceli(9657)

Question 639151: The ratio of salt to water in a certain solution is 4 to 15. if the solution contains 6 ounces of water, how many ounces of salt does it contain?
Click here to see answer by ankor@dixie-net.com(15634)

Question 639599: a boy made a shirt for himself and a proportional one for a small doll. The boy was 5feet 5inches tall and the doll was13inches tall, The boy shirtsleeve was 30 inches long in inches, how long in inches was the sleeve of the dolls shirt?

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Question 640285: a van travels 150 miles on 6 gallons of gas. write and solve a proportion to determine the number of gallons needed to travel 500 miles
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Question 640760: The ratio of the sides of two cubes is 2:3 and the difference of their volumes is 152.What is the length of the side of the bigger cube?
Click here to see answer by Alan3354(30982)

Question 640767: If 27 chipmunks can consume 54 kg of nuts in 45 days,how long will it take for 72 chipmunks to consume 240 kg of nuts?
Click here to see answer by ankor@dixie-net.com(15634)

Question 641372: Please help me solve this [[[ (x-7/x+5)=(x-6/x+4) ]]]
Click here to see answer by MathTherapy(1421)

Question 641366: Please help me solve this [[[ (-1/x) + (2/6x) = -2 ]]]
Click here to see answer by Alan3354(30982)

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.
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Question 642461: What is the answer to y
8 over 15 = y over 50
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Question 642608: If Joan read 75 pages in 4 hours how long will it take her to read 250 pages?
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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(15634)

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(9657)

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

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Question 649612: A factory produces 6 motorcycles in 9 hours. How many hours will it take to produce 16 motorcycles at this rate?
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Question 650402: 8y is 40% of what number?
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Question 652069: how do I find a proportion using points on a graph?
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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(57242)

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(6465)

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