Day 1: 312 miles

Day 2: 490 miles
Day 3: 221 miles
Day 4: 270 miles
Day 5: 503 miles

A group of girls are taking a road trip across the US. The distances they travel for each of the five days are shown. Which is a good estimate of the number of miles traveled over the five day period?

One way to estimate the total distance traveled over the five day period is to find the average daily distance and multiply it by 5. To do this, we can add up the distances traveled each day and divide by 5:

(312 + 490 + 221 + 270 + 503) / 5 = 359.2

So the average daily distance is approximately 359.2 miles. Multiplying by 5, we get an estimated total distance of:

359.2 x 5 = 1796 miles

Therefore, a good estimate of the number of miles traveled over the five day period is 1796 miles.