Question

An object travels 4/5 miles in one-half hour. What is it’s speed?

(This is a seventh grade honors problem, so is there an easier way to solve it?)

Answer 1

The object’s speed is 1.6 miles per hour, calculated by dividing the distance traveled (4/5 miles) by the time taken (0.5 hours). This is a simple way to determine speed suitable for a 7th-grade level.

Step-by-step explanation:

An object travels 4/5 miles in one-half hour (0.5 hours). To find its speed, we divide the distance by the time. Speed is calculated as follows:

Speed = Distance / Time

Speed = (4/5 miles) / (0.5 hours) = (4/5) / (1/2) = (4/5) * (2/1) = 8/5 miles per hour

Therefore, the object's speed is 1.6 miles per hour.

Checking whether the answer is reasonable, if we double the time to one hour, the object would travel 4/5 miles * 2, which gives us 8/5 miles. This confirms that our calculation of speed is correct.