Add 3y and 4y: 7y=56
Divide by 7: y=8
1/8 of a bag divided into two equal parts.
Each part gets 1/2 of 1/8, which is (1/2)*(1/8)=1/16 of a bag.
(hint: "of" frequently means multiply)
Answer: each feeder gets 1/16 of a bag of birdseed.
Answer:
Assume as book to be x and pen to be y.
3x+2y=395 equation 1
2x+5y=355 equation 2
Make any variable either x or y to be equal.
3x*2+2y*2=395*2
2x*3+5y*3=355*3
Here, I am making x as same so I cross multiplied
6x+4y=790 equation 3
6x+15y=1065 equation 4
Put minus sign in any one of the equation 3 or equation 4 in order to cancel out x.
6x+4y=790
-6x-15y= -1065
0 - 11y= - 275
y= - 275/ - 11
y= 25
As we got y, we can put the value of y in equation 1 or equation 2.
3x+2y=395
3x+2*(25)=395
3x+50=395
3x=395-50
3x=345
x=345/3
x=115
As we assumed the book to x and pen to be y
price of book = Rs. 115
price of pen= Rs. 25
( x² + 2 x + 1 ) / ( x - 2 ) / ( x² - 1 ) / ( x² - 4 ) =
= ( x² + 2 x + 1 )·( x² - 4 ) / ( x - 2 )·( x² - 1 ) =
= ( x + 1 )²·( x - 2 )·( x + 2 ) / ( x - 2 )·( x - 1 )·( x + 1 ) =
= ( x + 1 )·( x + 2 ) / ( x - 1 )
