Which one is correct ?
1 answer:
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Answer:
11.5
Step-by-step explanation
a^2+b^2=c^2
8(8)+(x)^2=196
64 + x^2=196
=
x=11.48
x=11.5 rounded
Answer:
The time taken by Allan to complete the marathon 3.5 hours
Step-by-step explanation:
Given as :
The distance cover in marathon = d = 26.2 miles
∵ 1 mile = 1.609 km
So, d = 26.2 × 1.609 km
i.e d = 42.155 kilo meter
The average speed of Allan = s = 12 km per hour
Let the time taken by Allan to complete the marathon = t hours
Now, ∵ Time =
Or, t =
Or, t =
or, t = 3.512 hours
So , The time taken by Allan to complete the marathon = t = 3.5 hours
Hence, The time taken by Allan to complete the marathon 3.5 hours Answer