Questions on Algebra: Proportions answered by real tutors!

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Question 422875: if 4 sweaters cost $51.04, how much would 6 sweaters cost?

Click here to see answer by tutorcecilia(2152)

Question 423022: what kind of ratio forms a proportion with 6/9?

Click here to see answer by MathLover1(6625)

Question 423907: A van travels 240 miles on 12 gallons of gas. Write and solve a proportion to find how many gallons the van needs to travel 420 miles.
Click here to see answer by ewatrrr(10682)

Question 423967: solve using long division, then check
(x^3-64)+(x-4)
once again I did do the problem but not sure if I did it right.
and I did do the check right.
answer was x^2+4x+16
Click here to see answer by linht117(37)

Question 423966: solve using long division. then check.
(-30+6y^3-28y+y^2)+(2y-5)
I tried it and think I got it, at least the check turned out.
just need to know if I showed my work correctly.
Click here to see answer by Alan3354(30993)

Question 424816: 3/6 = 5x can you show me the operation on gettin answer? Tks
Click here to see answer by linh117(31)

Question 424816: 3/6 = 5x can you show me the operation on gettin answer? Tks
Click here to see answer by Adrish(44)

Question 425966: how would I solve a proportion that looks like this
x+1/6=x-1/x

please help me. I dont know what Im doing.

Click here to see answer by ewatrrr(10682)

Question 426166: Find the missing number in the proportion: n/8 = 1/3

Thank you.
Click here to see answer by ewatrrr(10682)

Question 426586: HI I NEED HELP WITH A QUESTION I DON;T KNOW TO REACH THE CONCLSUION I KNOW NOTHING ABOUT PROPORTIONS THE QUESTION IS
SOLVE THE X IN THE FOLLOWING 3:80::X:150.
Click here to see answer by Alan3354(30993)

Question 426632: need answer but also trying to understand, add these
4x^2+4x+8
2x^2+x-7 suppose to add these 2 together
Click here to see answer by ewatrrr(10682)

Question 427367: An architecti's model of a new school has the ratio 1:28. If the model is 40 centimeters high, how many meters tall will the school be?
Click here to see answer by sudhanshu_kmr(1152)

Question 428122: wich of these is a correct proportion.
72:24=8:3
36:48=2:3
2:5=30:75
9:7=81:54
Click here to see answer by asuar010(324)

Question 428972: I think this is proportions yet I am not so sure. 120 decreased by 40% is (__)
Also, 56 INCREASED by 75% is (__)
Click here to see answer by jorel1380(2518)

Question 429265: If you can read 18 pages in 27 minutes, how long will it take you to read 24 pages
Click here to see answer by rfer(12657)

Question 429487: 2x-1\7=3x\2
Click here to see answer by jorel1380(2518)

Question 429690: what is 10,000 gallons of water/4 gallons of water=6 gallons of water/x teaspoons of acid equal to using a proportion
Click here to see answer by Alan3354(30993)

Question 430043: A bookstore reduced the price of a book with 25%. After that the sale rose by 10%.
With how many percent rose the number of sold books?
isn't simply 10% ?
Click here to see answer by jorel1380(2518)

Question 430146: 3k/5=k+6 what is the value of k
Click here to see answer by edjones(7569)

Question 429680: write the following comparison as a ratio 22 nickles to 13 dimes
Click here to see answer by ChristinaAide(1)

Question 431699: find the value of x in each proportion
12:x=x:75

Click here to see answer by rfer(12657)

Question 431992: find 33 1/3 % of 39

Click here to see answer by jorel1380(2518)

Question 432201: 20:60 as x: 50
Click here to see answer by rfer(12657)

Question 432649: How do you solve this proportions ?
a+1 over 2 = a - 1 over 9
3 over b = b over 9
and
5 over x = x - 1 over 3

Click here to see answer by ewatrrr(10682)

Question 432762: Sheila has to read 196 pages. It takes her 25 minutes to read 20 pages. How long will it take her to finish the book?
Click here to see answer by edjones(7569)

Question 432925: WHAT IS 10% of20% of 250?
Click here to see answer by robertb(4012)

Question 433249: What percent of 6y is 24 using a proportion ? I know it is already x/100=24/6y but how would you solve it?
Click here to see answer by josmiceli(9669)

Question 433581: "How do you solve the following: 1 3/4 / 3 3/8 = 1/3 / x"

Click here to see answer by ankor@dixie-net.com(15647)

Question 434616: If 2 cybic feet of sand weigh 90 pounds,how mych do 5 cybic feet of sand weigh?
Click here to see answer by unlockmath(1599)

Question 436176: solve for x in the proportion: 3/5=x/25

Thanks everyone for all the help!
Click here to see answer by stanbon(57299)

Question 436168: If y is larger than 8, what statement can be made about the size of x?
y/4=x/3
Click here to see answer by rwm(914)

Question 436172: solve for x in the proportion: 4:10=x:10
Click here to see answer by rwm(914)

Question 437518: HELP!!! i dont get this problem Please show your work!!!
t-2/t = 2/t+3
Click here to see answer by solver91311(16877)

Question 437518: HELP!!! i dont get this problem Please show your work!!!
t-2/t = 2/t+3
Click here to see answer by unreal4evr(11)

Question 437885: last question----- The NUFOne Communications COmpany must run a telephone line between two poles at opposite ends of a lake.the length and the width of the lake are 75 feet and 30 feet respectively.What is the distance between the two poles ,to the nearest foor?
a) 105
b)81
c)69
d)45

Click here to see answer by ewatrrr(10682)

Question 438426: what is the slope of a binomial 2x+3
Click here to see answer by josmiceli(9669)

Question 438426: what is the slope of a binomial 2x+3
Click here to see answer by Alan3354(30993)

Question 440713: three sides of a triangle measure 4,5 and 8. what is the length of the longest side of a similar triangle whose perimeter is 51
Click here to see answer by ewatrrr(10682)

Question 441329: how do you work out this problem? what is 33 1/3% of 9
Click here to see answer by stanbon(57299)

Question 441339: Length L and width W of a rectangle of given area vary inversely. when legngth is 18, width is 5. write a proportion.

Click here to see answer by jorel1380(2518)

Question 441341: the sides of a triangle have lengths 7, 8 and 10. what is the length of the shortest side of a similar triangle whose perimeter is 75
Click here to see answer by jorel1380(2518)

Question 442768: a) A locomotive is 10 m long and weighs 72 tonnes. A similar model, made of the same material, is 40 cm long, find the mass of the model.
b) Suppose the tank of the model locomotive contains 0.85 liters of water when full, find the capacity of the tank of the locomotive.

Click here to see answer by ankor@dixie-net.com(15647)

Question 443156: a block of land has length and width in the ratio 5:4 .if the perimeter of the block is 216 yards what is the length of the block.
Click here to see answer by stanbon(57299)

Question 443735: john can finish his homework on 10 minutes. a fellow student would finish it up at a different rate. both students working together can do the homework in 8 minutes. how long does it take the second student to complete the homework if working alone.
Click here to see answer by jorel1380(2518)

Question 445253: 116% 0f t is 50
150% of 90
what percent of 40 is 25
find 500% of 12
what percent of 25 is 17
85% of z is 106,250.what is z

Click here to see answer by rfer(12657)

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