SOLUTION: help please ! a speed of 50 miles per hour is = to about 80 kilometers per hour. Find the speed in kilometers per hour that equals : (a) 55 mph (b) 65 mph thanks.

Algebra ->  Trigonometry-basics -> SOLUTION: help please ! a speed of 50 miles per hour is = to about 80 kilometers per hour. Find the speed in kilometers per hour that equals : (a) 55 mph (b) 65 mph thanks.      Log On


   

Question 769476: help please !
a speed of 50 miles per hour is = to about 80 kilometers per hour. Find the speed in kilometers per hour that equals :
(a) 55 mph
(b) 65 mph
thanks.
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
50 mph = 80 kph
1mph = 80/50
1mph = 1.6kph
so, 55mph = 55*1.6 = 88kph
65mph = 65* 1.6 = 104mph
Hope this helps.
:-)