It was on a test I took for school, is this possible?
2007-05-05 06:47:47 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
A number when multiplied by 5 is the same as the number added to five:
5x = 5 + x
4x = 5
x = 5/4 = 1 + 1/4
Now let's check that answer:
5 * (5/4) = 25/4 = 6 + 1/4
5 + (5/4) = (20 + 5)/4 = 25/4 = 6 + 1/4
2007-05-05 06:50:39 · answer #1 · answered by McFate 7 · 1⤊ 0⤋
Simple:
x+5 = x*5
<=>5 = 4x <=> x = 5/4
5/4+5 = 25/4
5/4*5 = 25/4
2007-05-05 13:51:34 · answer #2 · answered by idest23 2 · 0⤊ 0⤋
Let x be the number, then
5x = x + 5,
so 4x = 5 and x = 5/4 = 1.25
Note that 5*1.25 = 6.25, and 1.25 + 5 = 6.25, so it IS the solution !
2007-05-05 13:50:56 · answer #3 · answered by sumzrfun 3 · 0⤊ 0⤋
The number is 1.25
Use simple algebra to answer this type of question. Let x be your unknown number, so:
5x = x+5
5x - x = 5
4x = 5
x = 5/4 or 1.25
2007-05-05 13:53:21 · answer #4 · answered by eugenio 1 · 0⤊ 0⤋
Let number be x
5x = x + 5
4x = 5
x = 5 / 4
2007-05-05 14:12:45 · answer #5 · answered by Como 7 · 0⤊ 0⤋
5/4 x 5= 6.25
5/4 + 5= 6.25
2007-05-05 13:54:54 · answer #6 · answered by Chris 1 · 0⤊ 0⤋
x+5=5x
5=4x
x=5/4
2007-05-05 13:51:07 · answer #7 · answered by Anonymous · 0⤊ 0⤋
its possible, 1.25
5x1.25=6.25
5+1.25=6.25
2007-05-05 13:56:30 · answer #8 · answered by Anonymous · 0⤊ 0⤋
1.25
2007-05-05 14:23:18 · answer #9 · answered by Ezat Z 1 · 0⤊ 0⤋