Questions on Algebra: Proportions answered by real tutors!

Tutors Answer Your Questions about Proportions (FREE)

Question 238449: 2. If 5 ounces is equal to 140 grams, then 2 pounds of ground meat is equal
to how many grams?
Click here to see answer by Fombitz(32388)

Question 238383: The ratio of the areas of two squares is 3 : 4. What is the ratio of the
lengths of their corresponding diagonals?
Click here to see answer by Fombitz(32388)

Question 238611: A model is made of a car. The car is 9 feet long and the model is 6 inches long. What is the ratio of the length of the car to the length of the model?
A. 18:1
B. 1:18
C. 9:6
D. 6:9
Click here to see answer by user_dude2008(1862)

Question 238447: Thirty men take 20 days to complete a job working 9 hours a day. How
many hours a day should 40 men work to complete the job?
Click here to see answer by ankor@dixie-net.com(22740)

Question 239712: What is 5 percent of 58?
Click here to see answer by edjones(8007)

Question 239889: how would you solve a cross multipliction for a proportion
here is the promble :
4 apples 12 apples
--------- = -----------
$1.60 X
Click here to see answer by solver91311(24713)

Question 240050:
Click here to see answer by louis1412(1)

Question 240048: X/9 = 20/9
Is this answer 20/1
Click here to see answer by checkley77(12844)

Question 240456: solve reduce any fractional answers if necessary
5:x=1:7
Click here to see answer by edjones(8007)

Question 240528: pao spent $140 of his paycheck and put the remaining $20 in his savings account. If the number of dollars he spends is proportional to the number he saves, how much of a $156-paycheck will he put into savings
Click here to see answer by rfer(16322)

Question 240517: What is 14.6=k over 2.5?
Click here to see answer by rfer(16322)

Question 241352: There are two "similar" figures here. They're not similar but go to this link and you would understand:
http://www.facebook.com/photo.php?pid=4136355&l=5296210f8d&id=747513746
Triangle ABC is similar to ADE, use proportions to solve for X.
Note: X is from B~D.
I don't know why but I keep getting 3.2 for X, is that correct?
The reason I'm not sure if thats correct is because the 3rd question involving this figure asks what's the area, and when I try to find the hypotenuse I get a number that looks like it probably wouldn't be the answer.
Thanks!
Click here to see answer by kensson(21)

Question 241358: x + 4 divided by 3= x divided by 5.Please help

Click here to see answer by Earlsdon(6294)

Question 241374: The speed of sound is 186,000 mi/sec Convert into inches per year. I'm asking because my calculator can't handle the big number. Thanks.
Click here to see answer by Alan3354(69443)

Question 241669: If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?

Click here to see answer by scott8148(6628)

Question 241817: x/4=2/3
Click here to see answer by checkley77(12844)

Question 241812: x/4=2/3
Click here to see answer by checkley77(12844)

Question 242121: OK i need help with this question just on how to set it up-
A man combines 7 fl oz of oil with 4 fl oz of vinegar. One day he needed a larger amount, so he used 8 fl oz of oil. How much vinegar did he need?
please show me how to set it up into a proportion!!!
Click here to see answer by checkley77(12844)

Question 242267: A postal worker can sort a days worth of mail in 8 hours. with her supervisor helping, it takes 3 hours. how long would it take the supervisor working alone?
Click here to see answer by nyc_function(2741)

Question 242526: Solve the following without using cross multiplication:
A motorbike can run for 10 minutes on $1.30 worth of fuel. How long could it run on $0.91 worth of fuel?
Please help. Even just some ideas would be great. Thank you.
Click here to see answer by solver91311(24713)

Question 242662: Given a/b = 2, a/c =12 a/d = 2 find the value of ab /cd
Click here to see answer by rapaljer(4671)

Question 243025: One side of a rectangle is 5 inches and the other side is x inches. Find the value of x if the area must be at least 60 square inches. Use A = L*W.

Click here to see answer by JimboP1977(311)

Question 243024: You are traveling to your aunt's house that is 234 miles away. If you are currently twice as far from home as you are from your aunt's, how far have you traveled?
Click here to see answer by nyc_function(2741)

Question 243333: im doing a scale project for school. i dont knw how to put my measurements in proportions for length, width, and depth. could you plz give me examples like make up measurements for length, width, depth and put them in proportions. plz. and thankyou for helping.
Click here to see answer by checkley77(12844)

Question 244198: Jim's car will travel 240 mi. on 15 gal. of gas. How far can he expect to go on 3 gal. of gas?
Any ideas? Thanks so much.
Click here to see answer by checkley77(12844)

Question 244195: On a city map, a rectangular park has a length of 4 in. If the actual length and width of the park are 500 ft. and 300 ft, respectively, how wide is the park on the map?
Please help! Thank you.
Click here to see answer by checkley77(12844)

Question 244191: Jim found out that after working for 9 months he had earned 6 days of vacation time. How many days per year does he earn at this rate?
Please help! Thank you.
Click here to see answer by checkley77(12844)

Question 244413: A train crosses a pole in 15 sec, while it crosses 100 meter long platform in 25 sec. the length of the train is:
Click here to see answer by edjones(8007)

Question 244398: Write a model for the statement
A is directly proportional to W
Click here to see answer by rapaljer(4671)

Question 244584: If the ratio of boys to girls in a class is 3 to 8, will the ratio of boys to girls stay the same, become greater or become lesser if 2 boys and 2 girls leave the class. Justify your answer.
This is what I answered, I just don't think it is correct:
The ratio will stay the same because you are removing the same amount of both girls and boys out of the class. Therefore, the ratio doesn't change because even though it diminishes the class by 4 students, the proportion of boys to girls doesn't change.
Click here to see answer by jim_thompson5910(35256)

Question 244627: 12.5 is 75% of what number?
Click here to see answer by richwmiller(17219)

Question 240833: Hi, I need help with this proportion.
4x/3x = 6x/4.5x
Solve for x.
Click here to see answer by checkley77(12844)

Question 244868: what is the geometric mean of the numbers 7 and 14?
Click here to see answer by unlockmath(1688)

Question 244574: downtown department store has a 75 percent all clothing items. a certain sweater cost the store 20 dollars. what will be the selling price of 20 dollars?
hi, i try to do proportions for this problem but notice that they wanted to take 75 percent of 20 dollars and having a problem setting that up.
Click here to see answer by KirkseyTD(2)

Question 244578: Two cubic meters of olive oil have a mass of 1830 kilograms. What is the density of olive oil?
Click here to see answer by Alan3354(69443)

Question 245498: 22/38 = 33/2x+7 =
Click here to see answer by checkley77(12844)

Question 245489: If a 1/4-c serving of Crunchies breakfast food has 0.5% of the minimum daily requirement of vitamin C, how many cups would you have to eat to obtain the minimum daily requirement of vitamin C?
Please help, thank you.
Click here to see answer by checkley77(12844)

Question 245486: On a certain day in Glacier Park, 728 eagles were counted. Five years later, 594 were counted. What was the percentage of decrease in the number of eagles counted?
Please help, thank you!
Click here to see answer by checkley77(12844)

Question 245582: If 70% of the girls in a class wanted to have a prom and 40% of the boys wanted a prom, is it possible that only 50% of the students in the class wanted a prom? Explain your answer.
I am lost. Please help, thank you.
Click here to see answer by solver91311(24713)

Question 245742: 5/14=4/a
Click here to see answer by TheProdicalSon(34)

Question 245742: 5/14=4/a
Click here to see answer by richwmiller(17219)

Question 246083: The directons say
"Use the percent proportions to solve each problem.Round to the nearest tenths, if necessary."
Question Number 3. Says
"3.4 is what percent of 5?"
My Question: how do I answer that with work shown?
I'm trying to figure out how exactly to do that problem without a calculator?
Click here to see answer by stanbon(75887)

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