8(3x+3)+3x i don't know this answer
1 answer:
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First, we are going to calculate her monthly off-peak usage:
1,185 kWh - 500 kWh = 685 kWh
Now that we know her monthly electricity consumption is 500 kWh on-peak and 685 kWh off-peak, lets calculate the cost of each plan:
<span>Standard use plan
</span>1,185 kWh - 600 kWh = 585 kWh
- For the first 600 KWh:
Since 100 cents = 1 dollar,
= $51
- For the remaining 585 kWh:
Since 100 cents = 1 dollar,
= $64.35
Total cost of the standard use plan: $51 + $64.35 = $115.35
Interval use plan
- On-peak hours:
Since 100 cents = 1 dollar,
= $80
- Off-peak hours:
Since 100 cents = 1 dollar,
= $27.40
Total cost of the interval use plan: $80 + $27.40 = $107.40
We can conclude that:
1. The new interval plan will be better for Anna since she will save $7.95 per month in her electric bill.
2. The correct answer is: <span>b.standard use plan - $115.35; interval use plan - $107.40</span>
1,185 kWh - 500 kWh = 685 kWh
Now that we know her monthly electricity consumption is 500 kWh on-peak and 685 kWh off-peak, lets calculate the cost of each plan:
<span>Standard use plan
</span>1,185 kWh - 600 kWh = 585 kWh
- For the first 600 KWh:
Since 100 cents = 1 dollar,
- For the remaining 585 kWh:
Since 100 cents = 1 dollar,
Total cost of the standard use plan: $51 + $64.35 = $115.35
Interval use plan
- On-peak hours:
Since 100 cents = 1 dollar,
- Off-peak hours:
Since 100 cents = 1 dollar,
Total cost of the interval use plan: $80 + $27.40 = $107.40
We can conclude that:
1. The new interval plan will be better for Anna since she will save $7.95 per month in her electric bill.
2. The correct answer is: <span>b.standard use plan - $115.35; interval use plan - $107.40</span>