Frankie is practicing for a 5-kilometer race. His normal time is 31 minutes 13 seconds. Yesterday it took him only 29 minutes 50 seconds.
How much faster was Frankie yesterday than his normal time?
Frankie was
minute
seconds faster.

1 min and 23 seconds

Step-by-step explanation:

I calculated this by trying to solve how many minutes and seconds it would take for 29 mins 50 secs to get to 31 mins 13 secs.

The first thing I did was add 1 minute. This would make the time become 30 mins 50 secs.

I then tried to find how many seconds it would take to make it become 31 minutes, which is 10 seconds (since 50 seconds + 10 seconds = 1 minute).

Then I added 13 seconds because that's how you get from 31 minutes to 31 mins and 13 seconds. 13 + 10 = 23

Finally, the answer is 1 minute and 23 seconds.

correct answers below:

-9

step-by-step explanation: