Two more than the quotient of a number and 5 is 8.

use variable w for the unknown number.

The answer is that w = 30

Step-by-step explanation:

To find this, we start by modeling the equation.

w/5 + 2 = 8

We know it looks like this since they say quotient, which means division problem.

w/5 + 2 = 8

w/5 = 6

w = 30

(a) we multiply the individual probabilities ( because they are independent):-

answer = 0.95626^2 = 0.91443

(b) this is 0.95626^7 = 0.73119

(c) Prob(at least one does not live until 4 years old) = 1 - Prob( all seven will live until 4 years old) = 1 - 0.73119 = 0.2688.

it would not be unusual for the last probability to happen - its a chance of about 1 in 4.