Y is directly proportional to x when y = 30 , x =6

a) work out an equation connecting y and x
b) work ou the value of y when x = 12

This is ur ans

Step-by-step explanation:

a.y=5x or x=y/5

b.y=60

y/x=5

y/12=5

y=60

step-by-step explanation:

a and d

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2