When you subtract 20 p from both sides you get nothing? what does P equal?
2007-07-02 02:52:03 · 11 answers · asked by mike a 1 in Science & Mathematics ➔ Mathematics
x=240-20p
x-240=-20p
x/20-12=-p
12-x/20=p
try similar for y
2007-07-02 03:01:32 · answer #1 · answered by Martin S 7 · 0⤊ 0⤋
It seems that variables p, x and y failed to establish a connection between the two algebraic equation or that the two equations are equally independent from each other and have no relationship whatsoever with each one. If someone tries to find out their values he'll just find himself going around in circle, a vicious one, like an old serpent which eats its own tail. What could be arrived of only regarding the value of p is as follows:
1st equation:
20p = 240 - x
p = (240 - x) / 20
p = 12 - .05x
2nd equation:
20p = 30 + y
p = (30 + y) / 20
p = 1.5 + 0.05y
I wish to resolve this myself in that way.
2007-07-05 22:38:45 · answer #2 · answered by Jun Agruda 7 · 2⤊ 0⤋
From x = 240 - 20p,
20p = 240 - x (1)
and from y = -30+20p,
20p = 30 + y (2)
Now, (1) + (2) gives,
40p = 270 - x + y
or
p = (270/40) - (x/40) + (y/40)
2007-07-02 03:08:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋
About the first thing that you should have learned about algebra is the fact that for each unknown you must have an independent equation if you wan the complete solution. Since your problem has 3 unknowns and only 2 equations you cant get a value for all of the unknowns.
2007-07-02 03:14:39 · answer #4 · answered by bignose68 4 · 0⤊ 0⤋
These could be parametric equations. In other words, give a value to p and get values for x and y. EX: If p=1, x=220 and y=-10. With 2 equations and 3 unknowns you won't get a numerical answer for p.
2007-07-02 02:59:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Oh particular on a Saturday me,my brother and sister all have been given a 10p mixture if we would been sturdy interior the week. I enjoyed toffee logs and white mice, my sister enjoyed shrimps and my brother enjoyed the candy bananas and cola bottles. if there became into something we weren't prepared on we would replace. those have been the days. Now a percentn'mixture expenses a fortune and it does not final long the two.
2016-12-08 22:18:24 · answer #6 · answered by ? 4 · 0⤊ 0⤋
There must be something else to the problem. From the info you gave, you can only solve for x or y with respect to the other.
2007-07-02 03:02:56 · answer #7 · answered by Juskics 2 · 0⤊ 0⤋
when you add the 2 equations together... x+y=210
P can be any real number because no matter what you use, x+y will always equal 210.
2007-07-02 03:03:02 · answer #8 · answered by hrhbg 3 · 0⤊ 0⤋
p= 210[x-y]
2007-07-02 03:12:54 · answer #9 · answered by ah tah 1 · 0⤊ 0⤋
ur question is wrong!!!!!it should some have something l
2007-07-02 03:01:06 · answer #10 · answered by dighalbank 3 · 0⤊ 0⤋