Question

the cost of 3 dozen apples and 2 dozen oranges in 870. But if we buy 4 dozen apples and 3
dozen oranges for 780, find the total cost of 1 dozen apples and 1 dozen oranges​

Answer 1

Answer:

let one dozen apples is equals to x

and One Dozen Orange Is equals to y

so so equation is

3x+2y=870

4x+3y=780

by eliminating method

3(3x+2y=870)

2(4x+3y=780)

9x+6y=2610

8x+6y=1560

-. -. -

x+0=1050

x=1050

3(1050)+2y=870

3150+2y=870

2y=870-3150

2y=-2280

y=-1140