Question

Alex swims at an average speed of 45 m/min. How far does he
swim in 1 min 24 sec?
m

Answer 1

I would first divide 45 meters by 60 seconds to know now far Alex swims every second:

45/60 = .75m/second.

Then I would multiply .75×24 seconds:

.75 ×24 = 18 meters in 24 seconds.

Add the 45 meters he swam in one minute to the 18 meters he swam in 24 seconds.

He swam 63 meters in 1 minute 24 seconds.

Answer 2

63 m

Explanation:

We know the rate in 45 m / min

We need to change the time to min

1 min 24 sec

We know that 1 min = 60 sec so 24 seconds is 24/60 ths of a minute

1 min 24/60 min

1 2/5 min

Changing to decimal form

1.4 minutes

Now we multiply by the rate to get the distance

d = r *t

d = 45 m/ min * 1.4 min

d= 63 m