Answer:
3.5 hours
Step-by-step explanation:
Given: Distance= 26.2 miles
Speed= 12 km/h
First lets convert the unit of speed from kmh to mph.
Remember, 1 mile= 1.609 km
∴ For speed of 12 km/h= 
Speed= 7.45 mph
Next, find time taken by Allan to complete a Marathon.

⇒ Time= 
∴ Time= 3.516 hours ≅ 3.5 h (nearest tenth)
∴ Allan took 3.5 hours to complete marathon.
Answer:
<h2>9cm and 5cm </h2>
Step-by-step explanation:
Note: The unit of the width in the question is suppose to be in cm
<em>"with length 18cm and width 10m"====>>></em> <em>"with length 18m and width 10m"</em>
so given that the dimension of the room is
<em>18mx10m </em>
This is a reduction process since we aim to transfer the dimension to paper
we are reducing the dimension by 2
and 1cm---2m
since 2m will represent 1cm
then the dimension will be
9cm and 5cm
<em> </em>
Answer:
13 - 2 = 11
Step-by-step explanation:
6n^4-24n^3+18n
6n(n^3-4n^2+3)
6n(n-1)(n^2-3n-3)
Since opposite angles are the same, we can set the equations together. 5x+12=6x-10. We then subtract 5x from both sides to get 12=x-10. Then add 10 to both sides to get x=22.