if X+Y=A
(A/Y) -1 = (Y-X)/Y
2007-06-14 05:10:30 · 9 answers · asked by Marty B 2 in Science & Mathematics ➔ Mathematics
For these types of problems, often the easiest thing to do is plug in numbers for the variables.
Say x is 6 and y is 3. Then a must be 9.
6+3=9 [check]
(6/9)-1=(3-6)/3
(2/3)-1=-3/3
-1/3=-1
This is an untrue statement, therefore the answer to your question is false.
2007-06-14 05:22:46 · answer #1 · answered by Linduh. 3 · 0⤊ 0⤋
No. For instance if X = Y = 1 and A = 2, then the first equation is true and the second is false.
2007-06-14 12:17:17 · answer #2 · answered by chancebeaube 3 · 0⤊ 0⤋
X+Y=A
Divide throughout by Y
X/Y + 1 = A/Y
X/Y= A/Y - 1 -----> (1)
THEREFORE THE STATEMENT IS NOT TRUE.
ALTHOUGH (1) IS TRUE.
2007-06-14 12:16:57 · answer #3 · answered by ? 5 · 0⤊ 1⤋
Yes,
If X = 0 and A = 2Y
2007-06-14 12:25:22 · answer #4 · answered by Raven 2 · 0⤊ 1⤋
X+Y=A
(A/Y) -1 = (Y-X)/Y
((X+Y)/Y) -1 = (Y-X)/Y
(X/Y) +1 -1 = (Y-X)/Y
X/Y = (Y-X)/Y not true
2007-06-14 12:22:09 · answer #5 · answered by Makotto 4 · 0⤊ 0⤋
I kinda doubt it. Multiply both sides by Y to get
A - Y = Y - X substitute for A
X+Y-Y = Y-X and
X = Y - X ???
Doug
2007-06-14 12:23:28 · answer #6 · answered by doug_donaghue 7 · 0⤊ 1⤋
NO. It makes no sense. Not because i dont understand it, it doesn't make sense when you work it all out.
2007-06-14 12:25:35 · answer #7 · answered by psych_superfan 2 · 0⤊ 1⤋
No, not true.
2007-06-14 12:17:09 · answer #8 · answered by BurningPyre 4 · 0⤊ 0⤋
Nope, it doesn't make sense.
2007-06-14 13:12:10 · answer #9 · answered by sweet_angel92 3 · 0⤊ 0⤋