Question

Ruth left her home at 9 am and walked to the library. She got to the library at 10 30 am. Ruth walked at a speed of 4 mph. (a) Work out the distance Ruth walked.

Answer 1

Answer:

she walked 6 miles.

Step-by-step explanation:

We know that Ruth walks at a speed of 4 mph and it took her 1.5 hours to walk from her home to the library (from 9 to 10.30).

We can solve this using a rule of three:

If she walks 4 miles in 1 hour, how many hours did she walk in 1.5 hours?

1 hour           4 miles

1.5 hours       x miles

Solving for x we get:

$x=\frac{1.5(4)}{1} =6$ miles

Thus, she walked a distance of 6 miles

Answer 2

The distance between her home and the library is the number of meters between them.

The distance walked is 6 m

The speed is given as:

$\mathbf{Speed = 4mph}$

The time spent walking is calculated as:

$\mathbf{Time = 10:30am - 9:00am}$

$\mathbf{Time = 1.5\ hrs}$

So, the distance is calculated as:

$\mathbf{Distance = Speed \times Time}$

Substitute known values

$\mathbf{Distance = 4mph \times 1.5hrs}$

$\mathbf{Distance = 6m}$

Hence, the distance walked is 6 m

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