Question

4. An aeroplane flies at a speed of 7.0 x 10 raist to power 4metres per
hour. How long will it take to cover a distance of 3.5 x
10 raist to power 5km?​

Answer 1

aeroplane flies at a speed of 7.0 x 10 raist to power 4metres per

hour. How long will it take to cover a distance of 3.5 x4.5=7.5

Answer 2

Answer:

$speed \: of \: aeroplane = 7 \times {10}^{4} m {s}^{ - 1} \\ = 70000 \: m {s}^{ - 1} \\ = 70 \: km \: per \: second \\ distance \: to \: be \: covered = 3.5 \times {10}^{5} km \\ = 350000 \: km \\ time \: taken \: to \: cover \: the \: distance \: = \frac{350000}{70} \\ = 5000$seconds

Step-by-step explanation:

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