My answer never adds up to 14.74 when plugged in...
2007-07-13 08:36:31 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
14.74=((18x)(100))/(208.2+18x)
2007-07-13 08:37:58 · update #1
14.74 = [(18x)(100)] / (208.2+18x)
14.74 = [18(100x)] / [18(11.5666+x)]
14.74 = 100x/(11.5666+x)
14.74(11.5666+x) = 100x
170.492667 +14.74x = 100x
170.492667 = 100x - 14.74x
170.492667 = 85.26x
1.99968 = x
plug it in:
[(18x)(100)] / (208.2+18x)
[(35.9942)(100)] / (208.2+35.9942)
3599.42 / 244.19422
=14.74
your prof uses annoying numbers!
2007-07-13 08:50:22 · answer #1 · answered by mcauslan 2 · 0⤊ 0⤋
14.74 = (18x) (100) / (208.2 + 18x)
14.74(208.2 + 18x) = 1800x
3068.868 + 265.32x = 1800x
3068.868 = 1534.68x
x = 1.9996794.
Check:
18*1.9996794*100 / (208.2 + 35.994229)
= 3599.4229 / 244.1942
= 14.74.
2007-07-13 15:54:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
14.74=((18x)(100))/(208.2+18x) ==
14.74=1800x/(208.2+18x) ==
Multiply both sides by the denominator of the R.H. side
==
3068.868 + 265.82x = 1800x ==
3068.868 = 1534.86x ==
x=1.9994449
2007-07-13 15:44:46 · answer #3 · answered by Gary H 6 · 0⤊ 0⤋
14â74 = [(18x)(100)] / (208â2 + 18x)
14â74(208â2 + 18x) = (18x)(100)
14â74(208â2 + 18x) = 1800x
3068â868 + 265â32x = 1800x
3068â868 = 1800x - 265â32x
3068â868 = 1534â68x
x = 3068â868 / 1534â68
x = 1â999 679 412
Now, put this value in and you will end up with 14â74.
2007-07-13 15:56:47 · answer #4 · answered by Sparks 6 · 0⤊ 0⤋
14.74 = 1800x/(208.2+18x)
14.74*(208.2+18x) = 1800x
1534.7x = 3068.9
x = 1.9997
check
1800*(1.9997)/(208.2+18*1.9997)=14.74
2007-07-13 15:44:06 · answer #5 · answered by nyphdinmd 7 · 0⤊ 0⤋
5.739634922
multiply the top
multiply the bottom
multiply both sides by the bottom
isolate the x
2007-07-13 15:42:31 · answer #6 · answered by Anonymous · 0⤊ 0⤋