Sagot :
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.
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.
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
so T=m-k
W=(m-k)R
if you want just m-k then m-k is the answer