Solve for x
500,000= 100000(50) - 2000000 - X(50)
I keep getting 70k but my text book says 50K. Who is right? Its been awhile since the 9th grade.
2007-08-15 08:28:04 · 7 answers · asked by ;aldjf;lasdjf;lkj; 2 in Science & Mathematics ➔ Mathematics
500,000= 100000(50) - 2000000 - X(50)
so
500,000 = 5,000,000 - 2,000,000 - X * 50
and
500,000 = 3,000,000 - X * 50
subtracting
-2,500,000 = -X * 50
so
x = 2,500,000/ 50
and X = 50,000
2007-08-15 08:38:00 · answer #1 · answered by tfloto 6 · 0⤊ 0⤋
I got 70k, but my knowledge of American Mathematics is limited. Text books make errors often, I wouldn't worry. There have been many times when I have stood in for an Answer Key for my Teacher because the Text book failed to do so. Hope I could be of some help. =D
2007-08-15 08:36:31 · answer #2 · answered by Anonymous · 0⤊ 0⤋
500,000 = 100,000(50) - 2,000,000 - 50x
50x = 100,000(50) - 2,000,000 - 500,000
50x = 5,000,000 - 2,000,000 - 500,000
50x = 2,500,000
x = 2,500,000/50
x = 50,000
The book is right.
On another note...I'm not sure what Phaelin is talking about...American Mathematics? I was under the impression that Mathematics was the only Universal Language.
2007-08-15 08:39:10 · answer #3 · answered by Toledo Engineer 6 · 0⤊ 0⤋
50K is correct
Rewrite as ...
50x = 5 million - 2 million - 500K
50x = 2.5 million
x = 50K
2007-08-15 08:37:18 · answer #4 · answered by KAL 7 · 0⤊ 0⤋
The answer is 50k
500,000 = 100,000 (50) - 2,000,000 - 50X
500,000 = 5,000,000 - 2,000,000 - 50X
50X = 2,500,000
X = 50,000
2007-08-15 08:43:30 · answer #5 · answered by Matt C 3 · 0⤊ 0⤋
The textbook is right: 50k.
500K = 100k*(50) - 2000K - 50X
500K = 5000K - 2000K - 50X
500K = 3000K - 50X
50X = 3000K - 500K = 2500K
X = 2500K/50 = 50K
2007-08-15 08:33:42 · answer #6 · answered by jjsocrates 4 · 1⤊ 0⤋
text book is right as far as I am concerned..
500000= 3000000-5X
DIVIDE ALL BY 5 THEN TAKE 1 ZERO OUT OF EACH
10000=60000 - X
X= 50000
2007-08-15 09:04:41 · answer #7 · answered by nnnn 3 · 0⤊ 0⤋