If you have a proportion...... how do you do the 7 method??
2006-12-15 10:26:35 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Question**
2006-12-15 10:31:10 · update #1
Thanks everyone for your answers this is what I was talking about I found it on my own http://amby.com/educate/math/4-2_prop.html
2006-12-15 10:38:09 · update #2
I've also never heard of the seven method. Do you HAVE to use this method? If not, then proportions are easy. You usually have two things equal to each other in some way. My favorite proportion that will solve MANY problems looks like this:
% / 100 = IS / OF
If that's hard to read, it's percent over 100 is equal to IS over OF (over as in a fraction). Here's how to use it.
Many questions will ask something like "What percent IS 25 OF 100?" or "What IS 25% OF 100?" IS represents the part of OF (or the whole) just as a percent is part of 100 (technically 100%). So you just fill in the known things and solve for the one left. As long as you have two of the three (100 is a known always), you can get the third.
Ex: What is 25% of 200?
Ans: The equation would look like:
25% / 100 = IS / 200
Multiplying both sides by 200 gives:
IS = 50
2006-12-15 10:38:06 · answer #1 · answered by Gecko 3 · 1⤊ 1⤋
Hmm... I think I know what you're referring to with the 7 method. I believe you are referring to how when you're done there is a 7 drawn. If so, here is my explaination. You have your two equal fractions. You multiply the two non-variable numbers that are diagonal from each other and divide by the only number remaining. The answer goes in place of the variable. A link to a great help page is below.
2006-12-15 10:35:55 · answer #2 · answered by Jacob T 2 · 0⤊ 0⤋
OK, the 7th method? Need more detail, but i'll try to answer it. One way you can solve a proportion is cross-multiplying. Another way is to knock of the fractions by taking the LCM (least common multiple). Or, if there is a trinomial in the denominator, use factoring to simplify.
2006-12-15 10:37:51 · answer #3 · answered by Rebel6 2 · 0⤊ 0⤋
Hm, I've never heard of the 7 method, and I couldn't find anything on google either. What is the 7 method?
2006-12-15 10:29:53 · answer #4 · answered by Jim Burnell 6 · 0⤊ 0⤋
what is the 7 method?
2006-12-15 10:31:18 · answer #5 · answered by raj 7 · 0⤊ 0⤋
the nicely suited answer is not any. Sandra scored a forty% on the 1st attempt after which she gained a 35% on the 2d attempt. to work out how I got here up with those solutions, you're taking sixteen(nicely suited solutions) divide by forty(complete obtainable) and you arise with 0.4 which interprets to forty%. an identical rule applies for the 2d attempt.
2016-12-18 14:10:55 · answer #6 · answered by rothe 3 · 0⤊ 0⤋