Question

Hi . I need help with this question. Please show workings.​

Answer 1

Answer:

6km/h

Step-by-step explanation:

$speed \: = \frac{distance}{time} \\ 50m \: = 0.5km \\ 30s \: = 0.0833333 \: hours$

$speed \: = \frac{0.5}{0.0833333} \\ speed \: = 6.0$

Answer 2

Answer:

6 km/h

Step-by-step explanation:

Solution,

Distance travelled = 50 m

Time taken = 30 second

Let's find the speed in meter/ second

Speed = $\frac{distance \: travelled \: }{time \: taken}$

plug the values

$= \frac{50}{30}$

$= \frac{5}{3 \: } \: meter \: per \: second$

Now,Let's find the speed in km/ hour

$\frac{5}{3} \times \frac{3600}{1000}$

Reduce the numbers with G.C.F 3

$5 \times \frac{1200}{1000}$

Reduce the numbers with GCF 5

$\frac{1200}{200}$

Reduce the fraction with 200

$6 \: kilometer \: per \: hour$

Hope this helps..

Best regards!