Respuesta :

Answer:

40

Step-by-step explanation:

d=rt

300=r(7.5)

300÷7.5=r

40=r

Answer:

r = 40mph

Step-by-step explanation:

d = rt where....

distance=(speed)(time)

distance/(time)=speed

300/7.5 = r

therefor, r=speed= miles/hour = 40

r = 40mph