hi i have these two fractions and need to find out what p equals in each case. cheers
1) -2 x (200/ 500 - 2p)
2) 1 x (225/ 500-p)
my maths is attrocious so an explanation would also be very much appreciated.cheers
2006-11-18 01:46:24 · 11 answers · asked by @@@Marty@@@ 1 in Science & Mathematics ➔ Mathematics
1) -2 x (2/5 -2p)
=4/5+4p after multiplying through by -2
2) 1 x (9/20 -p)
=9/20-p after multiplying through by +1
This has started you off you should be able to solve now!
2006-11-18 01:53:13 · answer #1 · answered by ask this dummy 4 · 0⤊ 0⤋
You're not actually finding the halfway mark for this question. If you needed to find the fraction that's halfway, you would just add up the 2 fractions. This gives you 7/6. And then you would divide the top by 2. So you get 3.5/6 but you would have to multiply both by 2 since you can't have a decimal inside a fraction. This gives you 7/12. However, you don't need to do any of this. You just need to put in a number that makes the statement true. To be a proper fraction, the denominator has to be at least 5. However, 4/5 is bigger than 2/3, so that can't be the answer. Let's go higher. 4/6 is actually equal to 2/3, so that can't be the answer. The fraction must be BETWEEN those two numbers. It cannot be equal to either of them. Let's try again. 4/7 actually works because it's bigger than 1/2 but smaller than 2/3. So, your answer is [7]. Hope this helped you! Good luck to you and God bless! :)
2016-05-22 00:42:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If these two equations equal each other then it can be worked out easily.
-2(200/500 - 2p) = 1(225/500 -p)
-400/500 + 4p = 225/500 - p
move the components around
4p + p = 225/500 + 400/500
5p = 625/500
5p=125/100
5p=1 + 25/100
5p=1 + 5/20
5p=1 + 0.25
p=0.5 + 0.05
p=0.55
hope that makes sense...
2006-11-18 03:06:19 · answer #3 · answered by Tom J 2 · 0⤊ 0⤋
You need to show us both sides of the equation. Where is the equals sign =. What is on the other side?
2006-11-18 01:58:42 · answer #4 · answered by cato___ 7 · 0⤊ 0⤋
Well first of all that is not a clear enough problem to understand what p is unless your r supposed to be graphing the equation. In Wich case P can be used as any number
2006-11-18 01:56:16 · answer #5 · answered by MJ'sTranny 249 1 · 0⤊ 1⤋
You can not solve for a variable (p) unless there is an equality (an "=" sign). There are probably typos in your question.
2006-11-18 01:48:36 · answer #6 · answered by Mr. G 6 · 0⤊ 0⤋
you cant work out what p equals unless you have an equation.
that means you need an equals sign in it!!!!!!!!!
2006-11-18 01:48:19 · answer #7 · answered by Anonymous · 0⤊ 0⤋
you need an equal sign
2006-11-18 07:57:57 · answer #8 · answered by Anonymous · 0⤊ 0⤋
you need an = becausr it is no an equation jus soke nombers with a fraction in it :S ....... i agree with your "attrocious " statement
2006-11-18 02:47:41 · answer #9 · answered by Anonymous · 0⤊ 0⤋
distributing
-400/500+4p
=4p-0.8
2.225/500-p
9/20-p
2006-11-18 01:49:12 · answer #10 · answered by raj 7 · 0⤊ 0⤋