Expert: Richard J. Raridon - 10/15/2008

Question
Linear Equations & Applications ?
Can anyone hlp me with these problems and show me how to work them out?


3b/8 + 2b-5/8=-4 b=?

t/t-2=6/t-2+3 t=?


1/b-8-16/b^2-8b+64 =1/b+8 b=?


F=(9/5)C+32 F=?


10x-(1/x)/5x+1-(2/x)=2 x=?

Answer
You need to include parentheses to make your problems clearer.  I'm assuming this is the way you meant them
3b/8 +(2b-5)/8 = -4
3b +2b-5 = -32, 5b = -27, b = -27/5
t/(t-2) = 6/(t-2) +3t
t = 6 +3t(t-2)
t = 6 +3t^2 -6, so t=0
1/(b-8) -16/(b^2-8b+64) = 1/(b+8)
Are you sure it's not b^2-16b+64?
F = (9/5)C +32 is the conversion from Celcius to Fahrenheit
You need a value for C in order to calculate F
10x -(1/x)/5x+1 -(2/x) = 2
Are you sure you wrote this one correctly?