A bicyclist was on a three day tour around a lake. On the first day, he rode 78 miles, on the second day he rode 54 miles, and on the third day he rode twice as far as the second day. Which of the following is a good estimation of how far he rode in the three days?
A good estimation of how far the bicyclist rode in the three days is:
78 (first day) + 54 (second day) + 2x54 (third day, twice as far as second day)
= 78 + 54 + 108
= 240 miles
Therefore, a good estimation of how far he rode in the three days is 240 miles.
what is the Answer
The answer is 240 miles as a good estimation of how far the bicyclist rode in the three days.
To estimate how far the bicyclist rode in the three days, we can add up the distances of each day.
On the first day, he rode 78 miles.
On the second day, he rode 54 miles.
On the third day, he rode twice as far as the second day, which is 2 * 54 = 108 miles.
Now, we can add these distances together to estimate the total distance:
78 miles + 54 miles + 108 miles = 240 miles.
Therefore, a good estimation of how far he rode in the three days is 240 miles.