Answer:
2/23 or about 8.6%
Step-by-step explanation
Add the number of students
Basketball+baseball+neither
5+15+5=25
Subtract the number from the number of students in the class
25-23=2
This means that there are two students who play both.
Then phrase the number as a probability fraction.
2/23
Answer:
after 7th day the temperature changes - 8.4 degrees.
Step-by-step explanation:
Each day, the temperature changes - 1.2 degrees. Then
- after 1st day the temperature changes - 1.2 degrees;
- after 2nd day the temperature changes - 2.4 degrees;
- after 3rd day the temperature changes - 3.6 degrees;
- after 4th day the temperature changes - 4.8 degrees;
- after 5th day the temperature changes - 6 degrees;
- after 6th day the temperature changes - 7.2 degrees;
- after 7th day the temperature changes - 8.4 degrees.
Let initially number of fishes =x
He gives 2/3 of his fish to a local high school, that is he gives 2x/3 fish .
So number of fishes left = x -(2x/3) = x/3 . And he gives 2/5 of x/3 to an elementary school , that is , he gives 2x/15 fishes to the elementary school. And finally the number of fishes left =30 , that is
So initially he have 150 fishes .
