Question

a cyclist traveled 70 km moving at a constant speed. write down a formula that shows the dependence of the speed, v, on the time, t. Find v(5), v(7), v(3.5)

Answer 1

Formula that shows dependence of the speed v , on time t , is

                    $Speed=\frac{distance}{time}\\\\v=\frac{S}{t}$

 Here, distance is 70 Km.

So,    $v(t)=\frac{70}{t}$

     $v(5)=\frac{70}{5}=14\\\\v(7)=\frac{70}{7}=10\\\\v(3.5)=\frac{70}{3.5}=20$

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Answer 2

Answer:

70/t, 14, 10, 20

Step-by-step explanation: