Question

EXPLAIN During the first six months of the year, the Montgomery's

monthly electric bills were $128.45, $131.50, $112.30, $96.25, $81.70,
and $71.70. How can the Montgomerys find their average monthly
electric bill for the first six months of the year?

Answer 1

To find the average monthly electric bill, the Montgomerys must sum their monthly bills and divide by six. Their average monthly electric bill for the first six months is $103.65.

Step-by-step explanation:

To find the average monthly electric bill for the first six months of the year, the Montgomerys would need to add up all of their monthly bills and then divide that total by the number of months. Here is the step-by-step process to calculate the average:

1. Add up all the monthly bills: $128.45 + $131.50 + $112.30 + $96.25 + $81.70 + $71.70.
2. Calculate the total amount spent on electric bills: $621.90.
3. Divide the total by the number of months to find the average bill: $621.90 ÷ 6.
4. The result of this division is the average monthly electric bill.

Using a calculator, we find that their average monthly electric bill for these six months is $103.65.