2 different sets of equations:
F+2T=30
(0.5F^ -0.5)/(0.5T^ -0.5)=1/2
4F+2T=30
(0.5F^ -0.5)/(0.5T^ -0.5)=2
Hello schoolhelpFirst of all, notice that in you can cancel the initial 0.5's to get
Then you need to know that:
- ; and
So
Do the same with the denominator:
and now invert and multiply, and the second equation reads
Substitute into the first equation and solve for , and then .
Do the second problem in a similar way.
OK now?
Grandad