Harry catches the train from Belfast to Dublin at 4pm. The average speed of the train is 70 mph and the distance between Belfast and Dublin is 105 miles. What time does Harry arrive in Dublin?

Step-by-step explanation:

Given

Required

Determine the arrival time

First, we calculate the time taken from Belfast to Dublin using:

Substitute values to the expression.

Cross Multiply

Arrival time is then calculated as:

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb