Answer:
Probability[Prime number] = 1/3
Step-by-step explanation:
Given:
Total number between 13 to 21;
13, 14, 15, 16, 17, 18, 19, 20, 21
Find:
Probability[Prime number]
Computation;
Total number between 13 to 21 = 9
Total number of prime number;
13, 17 ,19
Total number of prime number = 3
Probability pf event = Number of favorable output / Total output
Probability[Prime number] = Total number of prime number / Total number between 13 to 21
Probability[Prime number] = 3 / 9
Probability[Prime number] = 1/3
Answer:
The constant of proportionality is the ratio between two directly proportional quantities.
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
3 + 
÷ 2 * 4
work for the root first
3 + 
÷ 2 * 4
3 + 4 ÷ 2 * 4
now divide 4 by 2
3 + 2 * 4
then do multiplication
3 + 8
11
Answer:
x = - 3
Step-by-step explanation:
Given
12x + 7x = 5x - 42, that is
19x = 5x - 42 ( subtract 5x from both sides )
14x = - 42 ( divide both sides by 14 )
x = - 3
