Respuesta :

anastasiaelrod

Answer:

70

Step-by-step explanation:

Multiply the speed in one half hour by two, this will give you the hourly rate of speed. 35(2)=70

nolanbobolan4

Answer: 70 miles per hour

Step-by-step explanation: Use a proportion like this

35         X

—-   =    —-

30         60

30X=2100

x=70

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