Question

1. A truck that delivers essentials in remote areas can travel 85 kilometers. Which
of the following expresses the velocity vas a function of travel time i in hours?​

Answer 1

Given :   A truck that delivers essentials in remote areas can travel 85 kilometers.

To Find : which of the following expresses the velocity v as a function of travel time t in hours? ​

a. v (t)=85/t

b v (t)=t/85

c. t (v)=85/v

d. t (v)=v/85

Solution :

Speed = Distance / Time

Distance  = 85  km

Time    = t

Velocity = 85/t

=> V(t)  = 85/t

V(t)  = 85/t expresses velocity v as a function of travel time t in hours  

t (v) = 85/v   is travel time as a function of velocity

Correct answer is

V(t)  = 85/t expresses velocity v as a function of travel time t in hours

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