Basic Problem of something more?
I wonder if someone could have a look at this for me please, I know it's basic but I can't seem to get the answer they have in the book.
Find t in the equation
175.51 + (-44558) + 20.556(t - 25) = 0
My way is as follows
-44383 + 20.556(t - 25) = 0
-44383 + 20.556t = 0 + 25
(25 + 44383) / 20.556 = t
This gives me 2160.34, the answer quoted in the book is 2356.16
Which one is correct and if it's the latter what am I doing wrong?
Thanks in advance
Re: Basic Problem of something more?
You've made several errors:
1) You forgot the between steps and
2)You've expanded incorrectly. This means:
How I'd start: multiply everything by 1000:
Divide both sides by 20556:
However this does not give the answer you suggested. Are you sure you've written the question correctly?