Question

Determine the point on the graph of the equation 2x+5y = 20 whose x-coordinate is 5/2 times it's ordinate.

Answer 1

Hello...

x=5/2y

2x+5y=20

2(5/2y)+5y=20

5y+5y=20

10y=20

y=2

x=5/2y

x=5

Points = (5,2)

Answer 2

Answer:

x=5/2y

2x+5y=20

2(5/2y)+5y=20

5y+5y=20

10y=20

y=2

x=5/2y

x=5