There is no ten-thousandth...
1) acceleration
2) speed
3) velocity
Xd = y(L-d) then divide by "y"
xd/y = L - d then add "d"
xd/y + d = L
When you multiply 13.75 and 20.5 together, you get 281.875
So he started with 3/4 lb and ended up with 2/3 of that so 2/3 of 3/4
'of' can be roughly translated as multiply
so 2/3 times 3/4 =6/12=1/2 lb left
or you know that there are 3 out of 4 parts pound left so 2 out of 3 parts of nuts is = 2/4 or 1/2 lb