Anumber is chosen at random from the first 100 positive integers. find the probability that the number chosen is prime.

1/5

1/4

1/3

The answer is B). 1/4

Step-by-step explanation:

The probability that the number chosen is prime is:

The probability of an event is defined as the ratio of number of favorable outcome to the total number of outcomes.

Here the total number of outcomes are: 100

( Since we have to take first 100 positive integers i.e. 1-100)

Also, the number of favorable outcomes i.e.  the number of prime numbers between 1-100 is: 25

( Since, the prime numbers are:

2,3,5,7,11,13,17,19,23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97 )

Hence, the probability that the number chosen is prime is:

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.