Questions on Algebra: Proportions answered by real tutors!

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Question 607326: What is the value of x in the equation 2 over x minus 3 equals 26 over x?
I looked at the answer key and it said it was -8, but can you explain to me why?
Truly appreciate it! Thanks!

Click here to see answer by ewatrrr(24785) About Me 
Question 607326: What is the value of x in the equation 2 over x minus 3 equals 26 over x?
I looked at the answer key and it said it was -8, but can you explain to me why?
Truly appreciate it! Thanks!

Click here to see answer by Nihal@SriLanka(22) About Me 

Question 607306: Mr. Cutler usually makes a 45% profit on every radio he sells. During a sale, he reduces his margin of profit to 40%, while his sales increase by 10%. What is the ratio of his new total profit to the original profit?
A)1:1
B)9:8
C)9:10
D)11:10
E)44:45

Click here to see answer by josmiceli(19441) About Me 

Question 607829: 6/5=x/2
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Question 608001: if 3a+b/5b-4a=1/2, what is the value of 2a/3b
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Question 608001: if 3a+b/5b-4a=1/2, what is the value of 2a/3b
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Question 608469: Solve the system of equation for x and y
(3x+y)=7(y-x)
5(3x-y)=x+3

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Question 608528: How do you solve 8 over 26 = x over 91? Show your steps please.
Click here to see answer by unlockmath(1688) About Me 

Question 609091: Divide 270 into three parts with a ratio of 2:3:4
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Question 609091: Divide 270 into three parts with a ratio of 2:3:4
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Question 608930: The ratio of men to women working for a company to . If there are employees total, how many women work for the company?
Click here to see answer by Nihal@SriLanka(22) About Me 

Question 605588: what percent of 72 is 252?
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Question 609641: lester can type 48 words per minute.at that rate, how many words can he type in 90 seconds

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Question 610464: Please help me solve me this equation: 4x-y=5

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Question 610638: 0.06(1000-x)+0.05x=700
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Question 610851: Can u explain wat 5 divided by 505 and not tell the answer I want to know my own

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Question 610874: If the area of the Artic Ocean is 16% of the area of the Altantic Ocean, what is the area o the Artic ocean? Round to the nearest whole number.
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Question 611651: if jack needs 2 1/2 pints of cream to make a dessert. how many pints will he need to make 3 dessert
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Question 611689: it takes a jet airplane 4 hours and 20 minutes to travel nonstop from Chicago to Los Angeles , an air distance of 1745 miles. what is the average speed of the airplane in miles per hour.
Click here to see answer by Alan3354(69443) About Me 

Question 611943: The ratio of Elaine's weekly salary to Carl's weekly salary is 3:2. If Elaine gets a 20% raise and Carl gets a $200 raise, the ratio of Elaine's salary to Carl's will drop to 6:5. Elaine's original weekly salary is
A)720
B)600
c)480
D)400
E)200

Click here to see answer by stanbon(75887) About Me 

Question 612283: a blueprint shows a width of 3 inches. The actual width is 108 inches. What is the scale of the blueprint?
Click here to see answer by richwmiller(17219) About Me 

Question 612363: Find three numbers proportional to 5,8 and 9, such that their sum is 110
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Question 612910: The width of a rectangle is 3 m less than twice its length. (By m I think it means meter, not a variable.) If the ratio of the length to the width is 7/5, find the dimensions of the rectangle.
Click here to see answer by jim_thompson5910(35256) About Me 

Question 613230: There are 3 to 4 tablespoons of bread flour in 1 ounce. What is the maximum number of tablespoons of bread flour in 12 ounces?
A)8
B)12
C)36
D)42
E)48

Click here to see answer by ewatrrr(24785) About Me 

Question 613234: A parsec is approximately 3.26 light years, or 19.2 trillion miles. Approximately how many trillion miles are equivalent to 1 light year?
Click here to see answer by nerdybill(7384) About Me 

Question 613229: A student's grade in a course is determined by 4 quizzes and 1 exam. If the exam counts twice as much as each of the quizzes, what fraction of the final grade is determined by the exam?
Click here to see answer by ewatrrr(24785) About Me 

Question 613656: If soda is 4 part carbonate water and 3 part syrup. How much carbonate water is needed for 280ml of soda?
Click here to see answer by solver91311(24713) About Me 

Question 614164: In a scale drawing of a house, the living room is 1in. long. The actual length is 24 ft. On the drawing, a hallway is 1/4 in. wide . What is the actual width ?
I had trouble trying to solve this problem , please help . Thanks A Lot ! :)

Click here to see answer by stanbon(75887) About Me 

Question 614290: a lighthouse is in the top of a light house the angle of depression to a rock jutting above the water 6 degrees how far is the rock from the lighthouse

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Question 614729: If an airplane in a 1 inch.: 4 feet scale drawing is 5 inches long, how long is the actual airplane?
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Question 614763: Mr. Stanley mowed 3/4 of his lawn in 1 1/4 hours. Mr. Samuels, who works twice as fast, finished mowing the lawn. How many minutes did mr. Samuels work?
A)12 1/2
B)15
C)25
D)38
E)50

Click here to see answer by lwsshak3(11628) About Me 

Question 614761: Snowhite Paint Co. contracts to paint three houses. Andy can paint a house in 6 days, while Bruce would take 8 days and Carl would take 12 days. After 8 days Andy goes on vacation, and Bruce begins to work for a period of 6 days. How many days will it take Carl to complete the contract?

Click here to see answer by richwmiller(17219) About Me 

Question 614764: A car begins a trip with 12 gallons of gasoline in the tank and ended with 7 1/2 gallons. The car traveled 17.3 miles for each gallon of gasoline. During the trip gasoline was bought for $10.00, at a cost of $1.25 per gallon. The total number of miles traveled during the trip was most nearly
A)79
B)196
C)216
D)229
E)236

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 615010: As a motorist approaches the turnpike, he travels at the rate of 20 miles per hour in street traffic. For the first mile on the turnpike he travels at the rate of 30 miles per hour and then covers the next mile in one minute. What is his average rate for the first three mile of this trip?
A)25 mph
B)30 mph
C)33 mph
D)36 2/3 mph
E)50 mph

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 615005: 15 houses line Indian Creek. The average space between each house exceeds the average width of each house by 80 feet. The sidewalk, 2920 feet in length, begins at a point 30 feet before the first house and ends at a point 30 feet beyond the last house. What is the average width, in feet, of each house?
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 615660: 4/7=x-1/1
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Question 615715: A confectioner mixes 9 parts of a grade of candy that costs p cents per pound with 4 parts of another grade of candy that costs 1 1/2 times as much. What is the cost, in cents, of 1 pound of this mixture?
A)p
B)15p/13
C)35p/26
D)3p/2
15p

Click here to see answer by scott8148(6628) About Me 

Question 615718: 16 ounces of fresh orange juice contains 216 calories, and 16 ounces of fresh grapefruit juice contains 174 calories. If an 8 ounce mixture of these two juices contains 94 calories, what fraction of the mixture is orange juice?
A)1/3
B)47/108
C)1/2
D)2/3
E)47/54

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Question 615903: a car travels 35 miles on each gallon if gas. how far will it travel on 6 gallons?

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Question 615969: I am 62 and am tutoring a 50-year old woman who needs to pass the entrance exam for a college algebra class at the University of Maine in Augusta this Fall. I have done this question by calulator for an answer of B=1.08, but she reduced the fractions longhand and got B=0.1. Doing it her way step-by-step I see the problem is in the cross-products, but I cannot write it out in a step-by-step fashion to get the right answer either. Would you please write out the step-by-step reduction for me? The question is:
3¼/2 = B/two-thirds, that is 3 and one-quarter over 2 = B over two-thirds.
Thank you. I see my student again next Tuesday, June 5th, Bob Gross

Click here to see answer by Theo(13342) About Me 
Question 615969: I am 62 and am tutoring a 50-year old woman who needs to pass the entrance exam for a college algebra class at the University of Maine in Augusta this Fall. I have done this question by calulator for an answer of B=1.08, but she reduced the fractions longhand and got B=0.1. Doing it her way step-by-step I see the problem is in the cross-products, but I cannot write it out in a step-by-step fashion to get the right answer either. Would you please write out the step-by-step reduction for me? The question is:
3¼/2 = B/two-thirds, that is 3 and one-quarter over 2 = B over two-thirds.
Thank you. I see my student again next Tuesday, June 5th, Bob Gross

Click here to see answer by lwsshak3(11628) About Me 

Question 616116: Tim can fold a certain number of brochures in 20 minutes. John can fold the same number in 15 minutes. If tim and john work together for 3 hours and during that time john folds x brochures, how many brochures will tim fold?
A)4/3x
B)5/4x
C)3/4x
D)2/3x
E)1/2x

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Question 616281: 4/2x=7/3
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Question 616521: Tom and Bill agreed to race a 50-foot pool and back again. They started together, but Tom and Bill agreed to race a 50-foot pool and back again.. If their rates were constant, and Tom finished the race in 27 seconds, how long did Bill take to finish it?
A)28 sec
B)30 sec
C)33 1/3 sec
D)35 sec
E)37 sec

Click here to see answer by ewatrrr(24785) About Me 

Question 616520: A 12 gallon tub has a faucet that lets water in at a rate of 3 gallons per minute, and a drain that lets water out at a rate of 1.5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely?
A)3 min
B)4 min
C)6 min
D)7.5 min
E)8 min

Click here to see answer by ewatrrr(24785) About Me