help with proportions?
542998
x/y = 3/4\n(x+3)/(y+3) = 4/5\n\nso\n3y = 4x and\n4y + 12 = 5x + 15\n\nso\n12y = 16x and\n12y + 36 = 15x + 45\n\nso\n-36 = x - 45\n\nso\nx = 9\n\nso\n3y = 4(9)\ny = 12\n\nSo the new wages are 12 and 15 per hour.\n\n35(12) = 420\n35(15) = 525
613917
Height times Width times Length
776007
If your two figures have a ratio of similarity of 2:5, then each side of the smaller one is the side of the larger one times 2 and divided by 5.  This might lead you to believe that your area would be 100 times 2 and divided by 5 = 40.  This is, however, not the case.  If each side is times 2 and divided by 5, the total area is times 2 times 2 divided by 5 divided by 5. = 16\nThe best way to imagine this problem is by assuming your shape is a square.  How large is each side of the square if the area is 100 square units?  Each side must be 10 units, since 10 times 10 is 100 square units.  Now shrink each side by multiplying by 2 and dividing by 5.  Each side is now 4 units long.  How much area is your square?  4 times 4 is 16 square units!
912774
Yes, what's the question? I'll take a guess ...\n\nIf your rectangle is divided into ten equal pieces, then each one will be a tenth, so if you shade 3 for example, that will be 3 tenths ... any help?
1513
Open paint...\nHit file > open and find your picture. Open it up in paint...\nGo to the Image tab and hit "stretch and skew"\nEnter the same percentages in both squares. Try 25%...\n\nIf this is no good, hit Edit > Undo and try another percentage until you get the size that you need...\nHit File > Save as and file it in a flder in your "My Documents" file, like maybe, My Pictures...\nThen you can find it there to Email or whatever...
87753
Just add up the lengths of the three sides. Works for any triangle - wether it's equilateral, isosceles or obtuse.
52113
19/4, 4 3/4, 4.75\n\nPick one.
559136
SOMEANTHA is correct\n\nbut if you want a quickie answer for bigger numbers\nhere is a website that will do it for you\n\nhttp://www.onlineconversion.com/length_common.htm
445638
l=2w, and length times width is area, so...\nl*w=A...use l=2w, w=w, A=5000\n2w*w=5000, or\n2w^2=5000...divide by two and solve for w!
389991
height times the base area. divided by three.
1090160
E-mail me if you want a detailed step-by-step explanation. Illustrations extra..... :)
400812
I think you meant to say which ratios are proportional.  To find that answer treat each ratio like a fraction and reduce them to their simplest form.  When in simplest form if they are equal then they are proportional.  Another method would involve cross multiplication (diagonal multiplication) in your first two proportions you would multiply 1x5 and 2x10.  If your answers are equal then the ratios are proportional.
861907
Well it depends on the problem specifically, but usually you have to find the ratio of "two corresponding lengths in two similar geometric figures."(mathworlds)  Actually that is what the scale factor is.
606521
Try this:\n\nhttp://education.yahoo.com/reference/weights_and_measures/
978082
Well if you know the density of ANY two liquids and the overall weight, you ought to be abler to calculate the proportions:\n\nEG:\n\nWe have X amount of liquid with a SG of 1.2\nWe have Y amount of liquid with an SG of 1.6\nWe also know there is perhaps 3 litres and it weighs 1.4 Kg\n\n1.2 * x + 1.6 * Y = 1.4 * 3\nSimplifies\n\n12x + 16y = 14x3 (42)\n\n12x +16y = 42\n6x +8y = 21\n\nNow do basic algebra to find the proportions of the two.
709693
Your results should be:\n\nF1 All Curly (Cc)\nF2 3/4 Curly, 1/4 straight (1/4 CC; 2/4 Cc; 1/4 cc)
1079085
use this formula\n55x54x53x52x51/120