Answer:A
Step-by-step explanation:
Y varies directly as x
Y = kx
When y = 2.5, x = 5
Substitute the value of y and x
2.5 = k * 5
Make k the subject of the formula
k = 2.5/5
k = 1/2
:. The equation connectin y and x is
Y = 1/2x
When x = 10
Y = 1/2*10
Y = 10/2
Y = 5
