Question

to figure out how many hours it will take to drive from his home to his's cousin's house,a student divides 289 by 60 and estimates that it will take about 4.5 hours.explain whether you think this a reasonable estimate

Answer 1

This would be considered a reasonable estimate because if you were to use estimation, you can round 289 to the nearest hundred (300), which is divisible by 60.  When dividing 300 / 60, you will get 5 hours, which is 0.5 greater than 4.5 therefore making it a reasonable estimate.  In addition, when actually dividing 289 / 60, you will get approximately 4.8 hours, which is close to the estimate, 4.5 hours.