Questions on Algebra: Proportions answered by real tutors!

Tutors Answer Your Questions about Proportions (FREE)

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
Click here to see answer by Edwin McCravy(8896)

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(30993)

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(57290)

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(9135)

Question 612363: Find three numbers proportional to 5,8 and 9, such that their sum is 110
Click here to see answer by flame8855(424)

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(28536)

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(10682)

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(6958)

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(10682)

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(16877)

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(57290)

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

Click here to see answer by Earlsdon(6287)

Question 614729: If an airplane in a 1 inch.: 4 feet scale drawing is 5 inches long, how long is the actual airplane?
Click here to see answer by stanbon(57290)

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(6490)

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(9135)

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(15646)

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(15646)

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(15646)

Question 615660: 4/7=x-1/1
Click here to see answer by jim_thompson5910(28536)

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)

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
Click here to see answer by scott8148(6628)

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

Click here to see answer by solver91311(16877)

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(3458)

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
Click here to see answer by richwmiller(9135)

Question 616281: 4/2x=7/3
Click here to see answer by dragonwalker(72)

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(10682)

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(10682)

Question 616523: A 30% solution of barium chloride is mixed with 10 grams of water to form a 20% solution. How many grams of the original solution did we start with?
A)10
B)15
c)20
D)25
E)30
Click here to see answer by ewatrrr(10682)

Question 616963: A card is drawn from a deck of cards numbered 1-20. The card is NOT replaced and another card is drawn. Find the probability that a prime number is drawn and then a composite number. I am totally lost...Please help...thank you
Click here to see answer by ewatrrr(10682)

Question 616961: A number cube rolled and a number card is drawn from cards numbered 1-14. Find the number of possible outcomes for the situation.
P(a+b)=P(a)+P(b) A=(1,2,3,4,5,6) B=(1,2,3,4,5,6,7,8,9,10,11,12,13,14)
1/6 +1/14= 8/42+4/42=12/42 divide by 6 =2/7. Please help..Thank you
Click here to see answer by ewatrrr(10682)

Question 617089: The advertisement price of potatoes is 35 cents per pound. If a 3-pound bag actually weighs 3 1/4 pounds, what is the closest approximation in cents to the actual price per pound for that bag?
Click here to see answer by ewatrrr(10682)

Question 617094: A rectangular garden is 20 yards long and 10 yards wide. If it costs 80 cents per square yard to seed the lawn and $7.00 per running yard to put up a hedge around the garden, what is the total cost in dollars of seeding the garden and putting up a hedge around it?
Click here to see answer by nerdybill(6958)

Question 617350: Please help solving this problem:
Click here to see answer by stanbon(57290)

Question 617545: A air plain travelled 120km in 12 minutes to the nearest km what was its rate per hour?
Click here to see answer by ankor@dixie-net.com(15646)

Question 617874: For the following direct variation, give an equation that relates the two variables and includes a variation constant. The kinetic energy (KE) of a 1kg mass is directly proportional to the square of the speed (v). Variation constant=1/2. If there is no solution, type "no solution". If there is not enough information present to solve the problem, type "not enough information".
Click here to see answer by richard1234(5390)

Question 617865: The conductance of a wire varies directly as the square of the wire's diameter and inversely as it's length. Fifty meters of wire with a diameter 2 mm has a conductance of 0.12 ohms. If a wire of the same material has length of 75m and diameter of 2.5mm, what is its conductance? I need help. I have been on this problem for over an hour.
Click here to see answer by MathTherapy(1422)

Question 618062: The scale on a map shows that 5 cm represents 8.5 km. Which proportion can be used to find d, the distance between two cities, if the distance on the map is 18 cm?
Click here to see answer by scott8148(6628)

Question 618270: 18:54 = c:42
c = ?
how do i compute this? Thank you.
Click here to see answer by stanbon(57290)

Question 618276: please help me solve this equation f(-3) with f(x)=5x-6, it says you need to solve for f(x)
Click here to see answer by richard1234(5390)

Question 618264: Please help me solve the question:
Find the sum of all the multiples of seven between 18 and 711
Thanks =)
Click here to see answer by MathTherapy(1422)

Question 618378: Given that n varies directly with m with the constant k=5/6. If n=9, find m to the nearest tenth.
Click here to see answer by ewatrrr(10682)

Question 619049: in a scale drawing of a city the distance of 45 kilometers is represented by a line sector 3 inches long . on the same drawing what distance is represented by a line sector 2 inches long
Click here to see answer by ewatrrr(10682)

Question 619060: A model is made of a car. The car is 10 feet long and the model is 7 inches long. What is the ratio of the length of the car to the length of the model?
Click here to see answer by Alan3354(30993)

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