Question 803066
Most of those are uniform rates problems, but I will help with your "102 two parts" problem.



x and y two numbers.  Assuming {{{x+y=102}}}, and assuming {{{y>x}}}, {{{y/x=6+11/x}}}


The system to solve is {{{x+y=102}}} and {{{y/x=6+11/x}}}.  In second equation with the quotient & remainder, multiply both sides by x:
{{{y=6x+11}}}
and then try substituting this for y in the 102 sum equation:
{{{x+6x+11=102}}}
and you can continue from there?  Solve for x first?