Find the unit rate. David drove 135 miles in 3 hours.

To find the unit rate, you divide the total distance by the total time. So, David drove 135 miles in 3 hours, which gives us a rate of 135 miles ÷ 3 hours = 45 miles per hour. This means David was cruising at a pretty average highway speed, perfect for those long drives! In real life, understanding unit rates like this can help you plan your trips better. If you know your car's miles per gallon, you can estimate fuel costs based on your speed and distance. So next time you hit the road, remember that calculating these rates not only helps you budget but also keeps your travel plans efficient and enjoyable!