Riya rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour? Be sure to include the equation for speed in your answer.

Answer quickly 2 min into question will mark brainlest

14mph

Explanation:

270 minutes = 4 hr and 1/2hr

63 miles = 63/4.5 = 14 miles per hour

Making the speed 14mph

Equation = h = 4.5     

(4h x 4h ) + (1 x 311/100) = 60

= 4h x 4h +( 1 x 311/100) =60

= 16h^2 + (1 x 311/100) =60

= 256h + (1 x 311/100) =60

= 256h + 14 = 60

= 270h  =  60

= h = 4.5    

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.