Question

Larry rides his bike at a rate of 8.8 inches per second. About how m any miles per hour can Larry ride his bike?

Answer 1

Larry rides his bike 0.5 miles per hour

Solution:

Given that Larry rides his bike at a rate of 8.8 inches per second

To find: Speed in miles per hour

So we have to convert 8.8 inches per second to miles per hour

Use the conversion factor

`1 \text{ inch } = (1)/(63360) \text{ mile }`

`1 \text{ second } = (1)/(3600) \text{ hours }`

Convert 8.8 inches per second to miles per hour

`8.8 \frac{\text{inches}}{\text{second}} = 8.8 * (1)/(63360) * 3600 * \frac{\text{miles}}{\text{hour}}`

`8.8 \frac{\text{inches}}{\text{second}} = 8.8 * 0.00001578282 * 3600 * \frac{\text{miles}}{\text{hour}}\\\\8.8 \frac{\text{inches}}{\text{second}} = 0.5 (miles)/(hour)`

Thus Larry rides his bike 0.5 miles per hour