Questions on Algebra: Proportions answered by real tutors!

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Question 791260: if a 6 foot worker casts a 4 foot shadow at the same time the chimney on the ohio power company casts an 804 foot shadow . How tall is the chimney ?
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Question 791454: solve equation:12.5=0.8x

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Question 791784: GALLONS OF MILK COST
6 27
10 45
2 9
12 54
WRITE AN EQUATION THAT CAN BE USED TO FIND C, THE COST OF G, GALLONS OF MILK.(HINT: FIND THE UNIT RATE)
THIS IS 7TH GRADE MATH.
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Question 791786: a restuarant in florida charge an $8 sales tax on a $60 meal. at that same rate, what would be the value of a meal that resulted in a $30 sales tax?
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Question 792098: How do you set up "what percent of 125 is 25" in a proportion?
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Question 792304: a blanket has an area of 1500 square inches what is the approximate length of each side of the blanket
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Question 792398: The ratio of male students to female students at a certain university is 7 to 15. If there is a total of 16,500 students, find the number of male students and the number of female students.
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Question 792399: The perimeter of a rectangle is 506 centimeters. If the ratio of its width to its length is 10 to 13, find the dimensions of the rectangle.
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Question 792512: It takes 6 men 3hours to build a wall 100cm high. How many men would it take to build a 180cm wall in 2 hours?
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Question 792512: It takes 6 men 3hours to build a wall 100cm high. How many men would it take to build a 180cm wall in 2 hours?
Click here to see answer by MathTherapy(10555)

Question 792605: What is the proportion for
5 3w
-- = --
7 21
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Question 792665: How long has this Math Program been up?

-Sincerely, Sydney! :)
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Question 793667: 35 girls and boys are planned for a walk. There are in a ratio of 5 girls to 2 boys. How many boys are there?
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Question 793667: 35 girls and boys are planned for a walk. There are in a ratio of 5 girls to 2 boys. How many boys are there?
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Question 793871: The sides of a pair of rectangles are proportional. Find the missing height. The large square has a height of 12 and a width of 18. The small rectangle's height is x and the small rectangle's width is 12. The small rectangle's height is what must be found.
I tried to do the problem, but I don't know if I am setting it up correctly. For example, I tried:
12/x = 18/12
144/18 = 18x/18
x = 8.
I don't know if that is correct. I haven't done these types of problems in almost a year.
Click here to see answer by jim_thompson5910(35256)

Question 793917: In scale drawing 1/3 inches equal 6 feet, how many inches in 54 feet
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Question 793949: How do I solve a proportion using cross products property ?
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Question 794952: A scale on a map is 2 inches to 300 miles. Which of the following expressions could be used to find how many miles are between two cities that are 5 inches apart on the map?
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Question 795235: A segment 150 cm long is divided into 3 parts in the ratio 2:3:5. How long is each part?
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Question 795240: A boy wishes to divide a board 28 cm long into three pieces in the ratio 1:2:4.Find the length of each?
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Question 795241: A wholesaler in Divisoria bought 840 meters of curtain material which were divided into 3 bundles in the ratio 2:5:7.How many meters of curtain material are in each bundle?
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Question 795214: The cement to sand to gravel for bridge contruction is 3:4:6 if you need 1520 square yards to complete the job how much of each element do you need?
Click here to see answer by ankor@dixie-net.com(22740)

Question 795647: proportional triangles
first one is 8ft by 26ft
second is y by 16ft
I got 4.9 but when I enter my answer I get it wrong. I've tried 5 as well. Should I put it in as 4.92 or am I completely wrong?
Click here to see answer by Alan3354(69443)

Question 795879: I need help scaling a picture of a fireplace 5.5inches to a real life fireplace, a window 1 3/4inches to a real window, and a refrigerator 3.5 inches to a real refrigerator. Is 5.5 inches the conversion to 5.5feet. Please help!
My email address is www.von1908@hotmail.com
Thank you!
Click here to see answer by ankor@dixie-net.com(22740)

Question 795934: Den and Len share a �40,000 lottery win in the ratio 3:5 how much will each receive?
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Question 795019: 95 is 40% of what number

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Question 793034: 6 / b-1 = 9 / 7
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Question 796197: 5 5/7 : 3 = 2 3/8 : X

2 4/11 : 4 = 2X : 15/3

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Question 796559: The sum of two numbers is 19, and the sum of their squares is 185. Find the numbers.
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Question 796559: The sum of two numbers is 19, and the sum of their squares is 185. Find the numbers.
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Question 797187: Antonio has 5 times as much money as Eric. If Antonio gives 640 to Eric, they will have the same amount of money. HOw much money does Antonio have at first?
Click here to see answer by Cromlix(4381)

Question 798756: If 2% of a number is 300, what is 6% of the number
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Question 798951: 264 miles traveled in 5 hours
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Question 799331: If 2x =3y and 6y=5z then find x:y:z
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Question 799503: A sum of money was shared among Aaron, Ben, and Charles in the ratio 2 : 5 : 7. If Charles share was 1180 more than Aaron's share, what was the original sum of money shared?
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Question 799554: Y= 0.95x
y=19x
please help
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Question 799650: Antonio watches 2/3 of at movie at home then decides then decides to finish watching it later. If he already has watched 2 hours of the movie, how long is it?
Click here to see answer by josgarithmetic(39623)

Question 799987: If 3 inches on a map covers 225 miles what is the scale of inches to miles?
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Question 801008: A model airplane flies 22 feet in 2 seconds. What is the airplane's speed in miles per hour? Show work.

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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

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Question 801982: What is 5 Over 1/6 = n over 30? Find the missing proportion
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Question 802442: c/15 = 4/10
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Question 803719: if 40 men can do the piece of work in 40 days .if 5 men have off work after every 10 days in what time will the whole work be complated
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Question 804573: I need to factor 2x^2 -6x -7
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