(1) How many days will it take for Project Team B to complete alone?
A work efficiency = 1/40? Let b's work efficiency be x.
30x+20*( 1/40+x)= 1
50x+ 1/2= 1
x= 1/ 100
1÷ 1/ 100= 100? B It takes 100 days just to do it.
(2) Divide the project into two parts, where it takes X days for Party A to do one part and Y days for Party B to do the other part, where both X and Y are positive integers, X < 15, y < 70, and find xy.
x/40+y/ 100= 1
Because x
62.5 & lty & lt70
Y & lt70? When y=70, x/40+70/ 100 >: 1? x & gt 12
So what? 12 & lt; x & lt 15x= 13? Or? x= 14
When x= 13 is substituted into x/40+y/ 100= 1? y=? 67.5 (non-integer rounding)
X= 14,y=65。
So x= 14y=65?
There is water 3 meters deep in the pool. If x meters of water flows out of the drainage pipe every minute, it can be put out in y minutes.
(1) Find the resolution function of x and y and draw the function image? y=3x
(2) When x = 0. 1m, what is the value of time y? X=0. 1? y=3/0. 1=30