The pool filter operates for 2 hours each day in summer.
the electricity required to run the filter costs 3.5¢ per hour.
how much will it cost to operate the filter?
i) for 1 day?
ii) for 1 week?
iii)
during december?

Step-by-step explanation:

i) Since it is for 1 day, and they only use it for 2 hours in a day,

3.5 * 2 = 7

So $7 dollars for one day

ii) Since it is for 1 week, and 2 hours each day, which means 7 days, that would be 7 * 2, which equals 14:

14 * 3.5 = 49

So $49 dollars for one week

iii) Since it is for December, and there are 31 days in December, that would be 31 * 2, which equals 62:

62 * 3.5 = 217

So, $217 dollars for all of December

:)

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours