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jennytomas
jennytomas jennytomas
  • 24-08-2016
  • Mathematics
Answered

Someone help me with question 6 please!

Someone help me with question 6 please! class=

Verified Answer :

dalendrk
dalendrk dalendrk
  • 28-08-2016

\(1h=60min\\1min=60s\\therefore\ 1h=3600s\to1s=\dfrac{1}{3600}h\\\\57.1s=\dfrac{57.1}{3600}=\dfrac{571}{36000}\\\\\dfrac{1mi}{57.1s}=\dfrac{1mi}{\frac{571}{36000}h}=\dfrac{36000}{571}mph\approx63mph\)

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