For a track meet, Tara ran the 1,600 m event at constant speed in 5 minutes and 20 seconds. What was her speed?
1 answer:
Distance ran by Tara = 1600 m
Time taken by Tara to ran 1600 m = 5 min 20 seconds
We have to calculate the speed.
Firstly, we will convert the unit of time in one unit.
Time = 5 min 20 seconds
= 5 min + min (Because 1 min = 60 sec)
=
=
= min
Now we will use Distance speed formula which states,
Distance = speed time
1600 m = speed
speed =
Speed = 300 m/min
So, the speed of Tara was 300 meter/min.
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Probability of a student accepted at Dartmouth but not Harvard is:
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Based on the probability tree I made, below are the probabilities
Probability of a student accepted at both Dartmouth and Harvard is:
50% x 40% = 20%
Probability of a student accepted at Dartmouth but not Harvard is:
50% x 60% = 30%
Probability of a student not accepted at Dartmouth but accepted in Harvard is:
50% x 20% = 10%
Probability of a student not accepted in both schools is:
50% x 80% = 40%
As you can see, these probabilities total 100%