Questions on Algebra: Proportions answered by real tutors!

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Question 304184: How many cubed pieces of fudge that are 3 inches on an edge can be packed into a tin that is 9 inches deep by 12 inches wide by 8 inches high with the lid still being able to close
Click here to see answer by london maths tutor(243)

Question 304372: 25/75=1/x

Click here to see answer by richwmiller(17219)

Question 304329: Solve the Proportion:
5/p+1 = 4p/p
Click here to see answer by checkley77(12844)

Question 304520: a building is 2o ft long, 20 ft wide, and 20 ft high. Using a scale of 2 ft per inch, what would the volumne be. Can you show me how to work it out with the answer? Thanks
Click here to see answer by checkley77(12844)

Question 304643: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

Click here to see answer by richwmiller(17219)

Question 304679: 7/8=m/4
25/75=1/x
16/m=1/4
12/15=t/5
3/8=12/x
Click here to see answer by checkley77(12844)

Question 304743: For every 1,000 cubic meters of air that comes through a filtering system , 0.05 gram of dust is removed.how many grams of dust are removed when 10^7 cubic meters of air have been filtered ?
(A) 5 (B) 50 (C) 500 (D) 5,000 (E) 50,000

Click here to see answer by stanbon(75887)

Question 305316: If I had 5 pairs of shorts and 6 different shirts, please show me a tree diagram to find the number of possible ways I can wear my shorts and shirts. Please show me. I know it sounds silly, but it's a question on my test and I"m stuck. Thanks
Click here to see answer by stanbon(75887)

Question 305381: A 10 ft. tree casts a 14 ft. shadow. If a building casts a 280 ft. shadow, how tall is the building
Click here to see answer by Fombitz(32388)

Question 305422: Two cities n miles a part are located s inches a part on a certain map that is drawn to scale. What is the distance, in inches, on the map between two cities that are n+1 miles apart?
A n/s B(n+1)/s C s/(n+1) D s(n+1)/n E n/s(n+1
Click here to see answer by edjones(8007)

Question 306011: How many liter of a 10% solution and how many liters of a 20% solution must be mixed to obtain 20 liters of a 17.5% solution?
Click here to see answer by richwmiller(17219)

Question 306104: y is directly proportional to x and given that y = 42 when x =6.
Click here to see answer by richwmiller(17219)

Question 306292: Hi,
Thank you so much for taking my question.
If there is a ratio of 5:3 (boys to girls) at the graduation, then 12 more girls arrive, the new ratio changes to 10:9 (boys to girls). How many students are at the graduation now.
Thank you again.
Rose
Click here to see answer by scott8148(6628)

Question 306427: In a poll about favorite ice cream flavors, chocolate received 8 out of 25 votes from
children and 7 out of 28 votes from adults. Which group gave chocolate the higher percent of its vote?
I know if I divide 7 by 28 I get 25% and 8 by 25 I get 32% so the answer is the children, however, I do not know how to set the problem up and I must show my work. Thank you.
Click here to see answer by richwmiller(17219)

Question 306487: if my times are both in hours such as 1.25 hours and 2 hours can i just do it normally or convert into seconds
Click here to see answer by richwmiller(17219)

Question 306545: solve for x in the following 3:80 x 150.
Click here to see answer by dabanfield(803)

Question 306568: I need help solving the proportion for the unknown variable 4/21 = x/168 Thanks
Click here to see answer by unlockmath(1688)

Question 307879: there are 730 pupils in a school the ratio of boys to girl is 5:7
calculate the number of boys in the school
Click here to see answer by mananth(16946)

Question 308014: Coffee drinkers. Among 100 coffee drinkers, 36 said they preferred their coffee black and the rest did not prefer their coffee black. Find the ratio of those who prefer black coffee to those who prefer nonblack coffee.
Click here to see answer by checkley77(12844)

Question 308681: which is a better value? 1.5 liters of coldrink at R10.62 or 1.2 liters of coldrink at R10.32?
Click here to see answer by Fombitz(32388)

Question 308682: in a photo of a father and his daughter,the daughters height is 2.3cm and the fathers is 5.8cm,if the father is actually 188cm tall,how tall is the daughter?
Click here to see answer by mananth(16946)

Question 308876: 8/x=24/9
Click here to see answer by vleith(2983)

Question 309173: If 4 grapefruits sell for 79 cents, how much will 6 grapefruits cost?
Click here to see answer by nyc_function(2741)

Question 309928: Use a proportion to find the unknown length in the pair of similar figures.
These both sahpes are triangles.
Figure A. Figure B.

CB= 144cm IH= 108cm
AC= 24cm GH= 126cm
AB= 168cm GI= _______
Please before 10:00 pm
I will be dead if i do not hand this sheet in tomorrow.
Thanks
Click here to see answer by toidayma(44)

Question 310492: 1 y
- = - -
8 5
Click here to see answer by JBarnum(2146)

Question 310511: I am a fifth grader and we are working on proportions. I know how to figure out the missing number in a proportion where the problem is 1/3 = 1-1/3/N. You change 1-1/3 into 4/3 and solve the equation.
I get totally confused when N is on the other side of the equation, for example, N/8=1/3. Since 8 does not go into 3 I tried going to the lowest denominator, 24 and I come up with N = 3/24. This doesn't look right. Please help.
Click here to see answer by JBarnum(2146)

Question 310706: At the same time of the day, a flagpole casts a ten meter (m) shadow while a six meter statue beside it casts a two meter shadow. What is the height of the flagpole?
Click here to see answer by nyc_function(2741)

Question 311089: what is an equation of the line that passes through the point (-2,5) and is perpendicular to the line whose equation is y=1/2x+5?
Click here to see answer by solver91311(24713)

Question 311343: Pierre paid $126 for a coat that was listed for $180. What rate of discount did he receive?
Click here to see answer by fractalier(6550)

Question 311343: Pierre paid $126 for a coat that was listed for $180. What rate of discount did he receive?
Click here to see answer by JBarnum(2146)

Question 311342: Tom bought an electric drill at a 30% discount sale for $35. What was the original price of the drill?
Click here to see answer by fractalier(6550)

Question 311344: if the cost of a pair of shoes is $32 for a retailer and he sells them for $44.80, what is his rate of profit based on the cost?
Click here to see answer by JBarnum(2146)

Question 311546: Please help! The ancient Greeks thought that the
most pleasing shape for a rectangle was one for which the
ratio of the length to the width was approximately 8 to 5,
the golden ratio. If the length of a rectangular painting is
2 ft longer than its width, then for what dimensions would
the length and width have the golden ratio?
Click here to see answer by ankor@dixie-net.com(22740)

Question 312506: Find the unknown quantity for the following ratios and proportions.
If the primary to secondary voltage ratio is 4:1 for a transformer, what is the secondary voltage if the primary voltage is 460 volts?
Click here to see answer by rfer(16322)

Question 312509:
One wire has a cross-sectional area of 1,250 cmil and a resistance of 7 ohms. A second piece of wire, identical except for cross-sectional area, has a resistance of 10 ohms. Determine what the cross-sectional area of this second wire is. (Cross-sectional area and resistance are inversely proportional.)
Click here to see answer by ankor@dixie-net.com(22740)

Question 312740: write as a unit rate: a car travels 256 mi on 8 gal of gas

Click here to see answer by rapaljer(4671)

Question 313096: 28 devided (-2)+24 divided (-6)
Click here to see answer by rfer(16322)

Question 313277: how do set up the proportion problem the numbers that are given are 40 inch hips the maximum ideal waist size is 32 inches. What is the maximum ideal waist size for a woman with a 35 inch waist

Click here to see answer by stanbon(75887)

Question 313598: Alice eats 1/4 of a pizza. Bob then eats 1/3 of what is left. Finally, Christine eats 1/2 of the remaining pizza. What proportion of the pizza did they not eat?
Click here to see answer by rapaljer(4671)

Question 313778: the perimeter of a triangle is 132cm and the lengths of its sides are in the ratio 8:11:14 . find the length each side ?
Click here to see answer by mananth(16946)

Question 314366: Please help me with this if you can. Thank you.
Solve.

Click here to see answer by rapaljer(4671)

Question 315421: The sale price was 90 percent of the regular price. If the regular price was $36, what was the sale price?
Click here to see answer by stanbon(75887)

Question 315781: A recipe calls for 2.8 cups of milk for every 6 cups of flour. how much milk would be required for 5.5 cups of flour. write a proportion you would use to solve.
Click here to see answer by rfer(16322)

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, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265