Mathematics: Nick went bike ride to the store 5 miles away.If it took nick 1/2 of an hour to get there and 2/5 to get back,what was his average rate of speed

B. choosing one card from a deck and then choosing one card from another deck...

Nick went bike ride to the store 5 miles away.If

lnelson9127

07.02.2022

11.1m/s

Step-by-step explanation:

Given parameters:

Distance of store = 5miles

Time to store = $\frac{1}{2}$ hr

Time from store = $\frac{2}{5}$ hr

Unknown:

Average speed = ?

Solution:

Average speed is the total distance divided by the total time taken.

Average speed = $\frac{total distance}{total time taken}$

Total distance = distance to store + distance from store = 5 + 5 = 10miles

Total time taken = $\frac{1}{2}$ hr + $\frac{2}{5}$ hr = $\frac{9}{10}$ hr

Average speed = $\frac{10}{\frac{9}{10} }$ = 10 x $\frac{10}{9}$ = 11.1m/s

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