Question

The spiny-tailed iguana is the fastest lizard on earth, and can run at a top

speed of 31 feet per second. Convert this rate into miles per hour. Round your
answer to the nearest hundredth.

Answer 1

To convert the speed of a spiny-tailed iguana from feet per second to miles per hour, multiply the speed by 3600 to get feet per hour, and then divide by 5280 to convert to miles per hour. The iguana's top speed is approximately 21.14 miles per hour.

Step-by-step explanation:

The student wants to convert the speed of a spiny-tailed iguana from feet per second to miles per hour. To do this conversion, we need to know that there are 5280 feet in a mile and there are 3600 seconds in an hour. Using the given speed of the iguana, which is 31 feet per second, the conversion to miles per hour is as follows:

1. Multiply the speed in feet per second by the number of seconds in an hour to get feet per hour: 31 feet/second × 3600 seconds/hour = 111600 feet/hour.
2. Divide the feet per hour by the number of feet in a mile to get the speed in miles per hour: 111600 feet/hour ÷ 5280 feet/mile = 21.14 miles per hour (rounded to the nearest hundredth).

So, the spiny-tailed iguana can run at a top speed of approximately 21.14 miles per hour.