Question

During a snowstorm, a city began having rolling blackouts to conserve energy. The length of time, in minutes, each person could expect to experience power loss was equal to the difference between the population of the city and 800, multiplied by 10. If there were n people living in the city, which of the following expressions represents the amount of time, in minutes, each person could expect to experience power loss?

a) 10n - 800
b) 800 - 10n
c) 10n + 800
d) 800 + 10n

Answer 1

The expression that represents the minutes of power loss is 10n - 800, where n is the population of the city.

Step-by-step explanation:

The expression representing the amount of time, in minutes, each person could expect to experience power loss during the rolling blackouts is calculated using the formula given in the question:

the difference between the population of the city n and 800, multiplied by 10.

Thus, the correct expression is 10n - 800 because you subtract 800 from the population n and then multiply the difference by 10.

So, the correct option is (a) 10n - 800.