Xand y work at constant rates. how many more hours does it take machine y, alone, to fill an order of a certain size than machine x alone? i. x and y together fill order in 2⁄3 the time that x alone does. ii. y alone does it in twice the time as x alone does.

Answer with explanation:

V=Volume of tank

It is given that, X and Y work at constant rates.

Let rate of doing work of X is x  hour.

And, Rate of Doing work of Y is y  hour.

Statement I----X and Y together fill order in 2⁄3 the time that X alone does.

                                         -------------------------------------------------(1)

Statement II----Y alone does it in twice the time as X alone does.

Substituting the value of y in 1

→x≠ -2, because Rate of doing work can't be negative.

Substituting the value of x in 1, gives

→Rate of doing work of X= 2 hour

→Rate of doing work of Y=1 hour

you can't solve x because it is 2 linear equation and you only have one equation

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column