How old is Heather in years???
2007-11-08 08:21:35 · 7 answers · asked by Anonymous in Education & Reference ➔ Words & Wordplay
show the work please
2007-11-08 08:47:56 · update #1
Heather is
two-thirds as old as she will be
(eight years before she is twice as old as she is now)
OR
Heather's age = x
'twice as old as she is now' = 2x
'eight years before 2x' = 2x - 8
So the formula to use is:
x = 2/3 (2x -8)
-- multiply both sides by 3
3x = 2(2x-8)
-- mutiply it out
3x = 4x - 16
-- subtract 3x from each side
0 = x -16
-- add 16 to each side
16 = x
Heather is now 16
double-check --
16 = 2/3 (32 - 8)
2/3 (24) = 48/3 = 16
2007-11-08 10:21:33 · answer #1 · answered by bruhaha 7 · 0⤊ 0⤋
24
2007-11-08 08:27:26 · answer #2 · answered by Peacenik 4 · 0⤊ 0⤋
She is 16.
2007-11-08 08:29:23 · answer #3 · answered by Anonymous · 1⤊ 0⤋
Heather is 6.
(2/3)(x) = 2x - 8
2x = 6x - 24
4x = 24
x = 6
2007-11-08 08:30:13 · answer #4 · answered by slappy6363 3 · 0⤊ 1⤋
I think you're missing part of the question...this makes no sense.
2007-11-08 08:25:24 · answer #5 · answered by Lauren 5 · 0⤊ 1⤋
This is circular.
Unsolvable.
Unless I'm not smart.
2007-11-08 08:27:53 · answer #6 · answered by li.mony 3 · 0⤊ 2⤋
huh? english please...
2007-11-08 08:23:51 · answer #7 · answered by Dave B 3 · 0⤊ 2⤋