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skelet666 [1.2K]
3 years ago
7

In 1 1/2 hours, Sebastian can walk 4 1/2 miles. What is his average speed in hours per mile?

Mathematics
1 answer:
jeka943 years ago
4 0

Answer:

The average speed of Sebastian is 3 miles per hour.

<u>Solution:</u>

Given, In 1 \frac{1}{2} hours, Sebastian can walk 4 1/2 miles.  

we have to find What is his average speed in hours per mile

We know that, average speed =\frac{\text {total distance walked}}{\text {total time taken}}

In our problem, total distance travelled = 4 \frac{1}{2} \text { miles }=\frac{4 \times 2+1}{2} \text { miles }=\frac{9}{2} \text { miles. }

\text { And, total time taken }=1 \frac{1}{2} \text { hours }=\frac{1 \times 2+1}{2} \text { hours }=\frac{3}{2} \text { miles. }

Now, average speed of Sebastian =\frac{\frac{9}{2}}{\frac{3}{2}}=\frac{9}{2} \times \frac{2}{3}=\frac{9}{3}=3

Hence, the average speed of Sebastian is 3 miles per hour.

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