Question

Question #14004

Answer 1

`2 1/2`miles in half an hour and `12 1/2`miles in `2 1/2` hours

Explanation:

Malia runs 5 miles in 1 hour.

So, she must be running `5` x `1/2` miles in `1/2` an hour.
that's `5` x `1/2` miles
`2 1/2`miles

and also, she must be running `5` x `2 1/2` miles in `2 1/2` hours
that's `5` x `5/2` miles
`=25/2` miles
`=12 1/2`miles :)

-Sahar.

Answer 2

See below

Explanation:

Use the unitary method

Distance covered in 1 hour= 5 miles
Distance covered in `1/2` hour= `5/2`
= 2.5 miles
Distance covered in 2`1/2` hours = `5*2 1/2`
= `5*5/2`
= `25/2`
= 12.5 miles