hai takes 12 minutes to walk to school. he wants to get there 15 minutes early to meet with his lab partner. what time should he leave his house if school starts at 8:10am?

Answer 1

time walking + time allowance to be early
= 12 min + 15 min
= 27 minutes

time he should leave
= 8:10 am - 0:27
= 7:43 am

check by adding 27 minutes to 8:10