Questions on Algebra: Proportions answered by real tutors!

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Question 849809: I need help on this story problem. there were 50 problems on the math test. Jeff got 45 correct. what was his percent on the test?
Click here to see answer by Fombitz(32388)

Question 850627: The ratio of men to women working for a company 4 to 5 . If there are 75 women working for the company, what is the total number of employees?

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Question 850749: What value of n makes the following a proportion?
thirty over n equals twelve over sixteen

2.5
4
10
40
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Question 850887: 48 students on a field trip. 1/4 is girls, how many boys were in the 48?
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Question 850898: Abbie spent 5/8 of her money and saved the rest. if she spent $45.00, how much money did she have at first?
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Question 851295: Den and Len share a �40 000 lottery win in the ratio 3 : 5. How much will each receive ?
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Question 851671: the volume of a sphere varies directly as the cube of its radius. if the three cubes of radius 3cm , 4cm and 5cm are melted and recast into one sphere then find the radius of the sphere
Click here to see answer by Alan3354(69443)

Question 852308: What is the solution of the proportion?
n-6= n-5
3n 3n+1
I cross multiplied and got (n-6)(3n+1)=3n(n-5) and I then FOILed and did the distributive property and got 3n^2+n-18n-6=3n^2-15n and I am now stuck and have no idea what to do next.. Please Help! Thank You ! :)
Click here to see answer by josh_jordan(263)

Question 852461: the men to women ratio of people who work in a company is 7:8 if the number of women is 360 find the number of men who work in this company?
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Question 852491: A building is 900 feet tall and 150 feet wide. A scale model of the building is 3 feet tall.
How far is the base of the ladder from the building?
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Question 853306: I can not figure out how to use scale factor of 1 inch =1 foot.

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Question 853304: Multiply 2a-5b+c by 3a+b
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Question 854330: The Millers plan to serve a two-pound banana split for a dinner party dessert. The recipe calls for two and a half times as much ice cream as syrup and one and two thirds times as much banana as syrup plus three and seven twelfths ounces of whipped cream and cherries. How many ounces of ice cream should be used?
Click here to see answer by richwmiller(17219)

Question 855402: what is 30% of 25% of 400?
I tried the formula A/B= P/100
but I got stuck.. please help
Click here to see answer by Alan3354(69443)

Question 855495: A man has two adjacent pieces of land and he wants to divide the total area of them among his three sons equally after taking (20m square) to construct a garage. The first land is 21.84m by 10.63m .and second one is21.84m by 13.58m.what is the area of each of the divided three land pieces?
Click here to see answer by ankor@dixie-net.com(22740)

Question 855656: Inheritance: After died and he has 3 sons, one daughter and a wife. He has 100.000 R.O and it is deal to distribute the money between them.
Click here to see answer by JulietG(1812)

Question 856370: how do I solve this proportion?
x/20=?/12
Click here to see answer by josmiceli(19441)

Question 856370: how do I solve this proportion?
x/20=?/12
Click here to see answer by Alan3354(69443)

Question 856365: A dog runs from one end of a field to another, 305 meters, in 20 seconds. What is the dogs average speed in meters per second?
Click here to see answer by edjones(8007)

Question 856620: in 5 years, the price price of a calculator went from $80 to $48. What is the ratio
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Question 856701: how do I solve b/-3-4=12
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Question 853413: Find the first five multiples of
5
7
11
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Question 856721: the distance between two cities is 500 miles.on a map,they are 6 inches apart.what is the scale of the map?

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Question 849204: A student who is 5' casts a 2' shadow. How many feet tall is a nearby tree which casts a 14' shadow.
proportion = ?
solution = ?
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Question 832003: An 8-pound bag of cat food sells for $13.89. A 20-pound bag of the same brand sells for $24.79. Which is the better buy?
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Question 846311: The school theater is arranged in sections so that each row has the same number of seats. Spencer is seated in the 5th row from the front and the 3rd for from the back. His seat is 6th from the left and 2nd from the right. Draw a diagram to determine the number of seats in Spencer's section of the theater.
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Question 837389: ina a shipment of 400 parts, 14 have been found defective how many defective parts should be defective in a shipment of 1000
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Question 854035: You are playing a game in which you need to spin a spinner with the numbers 1-12 on it, roll a six-sided die and flip a coin. What is the probability of spinning a multiple of 6, rolling a 5 and flipping a heads? (:
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Question 857400: Set up an algebraic equation and solve the problem.
The ratio of male students to female students at a certain university is 3 to 19. If there is a total of 19,800 students, find the number of male students and the number of female students.
male students _______
female students _______

Click here to see answer by richwmiller(17219)

Question 857485: Michael was earning $120 per week when he had to take a 10% decrease in pay. Six months later he received a 10% increase in pay. Now how much does he earn for a week of work? Write and evaluate expressions to decribe the situation.
Click here to see answer by rvfer(117)

Question 857677: how to solve this 7:10 ; 6:?

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Question 857542: An 8ft tall telephone booth standing next to an giraffe casts a 4ft shadow. if the adult giraffe is 14 tall then how long is its shadow.
Click here to see answer by ben720(159)

Question 854221: the scale of a maop is given 1:2,00000.two cities are 3cm apart on the map calculate the actual distance between them.
Click here to see answer by Diana541(24)

Question 858955: A 4-L can of pa t covers 32m^2. What area will a 10-L can of paint cover
Click here to see answer by josgarithmetic(39617)

Question 859000: If 3,x,12 are in continued proportion, find the value of x

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Question 860538: y=1/2x-3;4x-2y=16
Click here to see answer by tommyt3rd(5050)

Question 861497: I have a 55 gallon tank. I would like a 15% sulfuric acid, 85% water solution in my tank. I have 98% sulfuric acid in quarts. How much sulfuric acid and how much water will I need to add to my take to have a 15% sulfuric acid solution?
Click here to see answer by richwmiller(17219)

Question 862209: 3x + 6/8 = 6/2x + 4
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Question 862689: What is the solution to this proportion: (x+2)/negative 4 is greater than or equal to (x-7)/2
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Question 863793: Hello. help me with this problem please.Two ships are 16 miles apart and are traveling at 40 miles per hour. How long will it take for them to meet?
Thank you.
Click here to see answer by richwmiller(17219)

Question 864287: does 2 over 3 and 6 over 9 form a proportion

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Question 845778: Solve for x:
20/(x+5)=(x+5)/x
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Question 850086: how to solve 1/6:1/8:1/24
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Question 853416: Simplify 1/4 of 2y+3y (2y-y)
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