so work =time times rate or W=TR
so T=m-k W=(m-k)R
if you want just m-k then m-k is the answer
The answer is . . . m - k minutes is the part of the lawn still unmowed.
You know it takes Paul m minutes to mow the entire lawn, and you know that he's mowed for k minutes so far . . .
. . . the amount of time left is the total less the amount he's mowed so far
m - k . . . is the time yet to be spent mowing the rest of the yard.
The part of the lawn that is still unmowed after Paul works for k minutes can be calculated with the formula 1 − m k . This reflects the total lawn minus the proportion that has already been mowed based on the minutes worked. Simply plug in the values for k and m to find the unmowed portion.
;