it took peter sixteen more minutes to drive to work today than it did yesterday tomorrow he wants it to take five minutes less than yesterday so that his average drive time for three days is no more than 30 minutes how long did it take peter to get to work each day

Question

anonymous · Answer

If the time he took yesterday was t, then:

anonymous · Answer

first day 1 min
second day 17 min
third day 12

total of 3 days is 30 min

anonymous · Answer

$${t+t+16+t-5 \over 3}\le30 \implies 3t+11\le90 \implies t \le26.3$$. So the time he took yesterday has to be less than 26.3 min. If we take $t=25$, then the time he took today was $25+16=41$ min, and the time he should take tomorrow is 20 min.

anonymous · Answer

sorry i missed the average part....

first day 21 min
second day 37 min
third day 32

this gives daily average of 30 min

anonymous · Answer

@Anwar
your equation formation is wrong... so your answers are wrong

anonymous · Answer

if tie for yesterday = t
time for today = t+16
time for tomorrow = t+16-5 = t+11

so  t+ t+16+t+11
      ------------  = 30
               3

3t + 27
-------  =  30
      3

3t + 27 = 90
3t = 90-27
t = 63/3 = 21

anonymous · Answer

so time for yesterday = 21 min
time for today = 21 + 16 = 37
time for tomorrow = t+11 = 21 + 11 = 32

anonymous · Answer

hey susie

check the ans and if satisfied, pls click GOOD ANSWER button for me  :})

anonymous · Answer

The question says five minutes less than yesterday, right?!