note: please make sure to properly format your answers. all dollar figures in the answers need to include…

note: please make sure to properly format your answers. all dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.67). all percentage values in the answers need to include a percentage sign (%). for all items without specific rounding instructions, round your answers to two decimal places, show both decimal places (5.06).\nair - conditioners are rated by btus. you learned about btus in section 7 - 2, example 6. one watt - hour is equivalent to 3.413 btus per hour.\na. how many btus per hour are equivalent to a kilowatt - hour?\nb. if an air conditioner is rated at 16,000 btus per hour, how many watts does it require? round to the nearest 100 watts.\nc. express your answer to part b in kilowatt - hours.\nd. if you run an air conditioner for 18 hours per day for 31 days in july, how many kilowatt - hours will it require for the month? round to the nearest 100 kilowatt - hours.\ne. based on your answer to part d, and a rate of $0.13 per kilowatt hour, estimate the cost of running the air conditioner for july to the nearest ten dollars.

note: please make sure to properly format your answers. all dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.67). all percentage values in the answers need to include a percentage sign (%). for all items without specific rounding instructions, round your answers to two decimal places, show both decimal places (5.06).\nair - conditioners are rated by btus. you learned about btus in section 7 - 2, example 6. one watt - hour is equivalent to 3.413 btus per hour.\na. how many btus per hour are equivalent to a kilowatt - hour?\nb. if an air conditioner is rated at 16,000 btus per hour, how many watts does it require? round to the nearest 100 watts.\nc. express your answer to part b in kilowatt - hours.\nd. if you run an air conditioner for 18 hours per day for 31 days in july, how many kilowatt - hours will it require for the month? round to the nearest 100 kilowatt - hours.\ne. based on your answer to part d, and a rate of $0.13 per kilowatt hour, estimate the cost of running the air conditioner for july to the nearest ten dollars.

Answer

Explanation:

Step1: Recall the given values

We know from part d that the air - conditioner uses 2600 kilowatt - hours in July and the rate is $0.13 per kilowatt - hour.

Step2: Calculate the cost

The cost $C$ is calculated by multiplying the number of kilowatt - hours $k$ by the rate $r$. So $C = k\times r$, where $k = 2600$ and $r=0.13$. Then $C=2600\times0.13 = 338$.

Step3: Round to the nearest ten dollars

To round 338 to the nearest ten dollars, we look at the units digit. Since 8 > 5, we round up. So the cost rounded to the nearest ten dollars is $340$.

Answer:

$340$