Answer:
Train A - 50 miles per hour
train B - 30 miles per hour
Step-by-step explanation:
Let x mph be the speed of the train B, then the speed of the train A is (x+20) mph.
In 3 hours,
In total, they covered the distance of 240 miles, so
Answer:
6.28
Step-by-step explanation:
This problem bother on the mensuration of flat shapes, a circle.
Volume v =
Diameter d=
Radius r =
Since we are required to solve for the circumference of a circle
The expression for the circumference of a circle is given as
The question insist that we type just a number hence the circumference of the plug is 6.28