Mcgarapatiidn
Answered

Join the IDNLearn.com community and start getting the answers you need today. Ask anything and receive immediate, well-informed answers from our dedicated community of experts.

You are at the store with your friend's family and they are looking to buy a new refrigerator for their home. There are two options available that they are interested in buying. On one of them there is a sticker that says “Energy STAR Certified''. Below the sticker it says that this refrigerator is guaranteed to be at least 10% more energy efficient than non-energy star brands. How might you use your understanding of science to walk your friends' family through why this Energy STAR fridge is a better purchase for the environment?

Sagot :

Jmille32idn

Answer:

It will take 83 days to recover the extra cost

Explanation:

To determine the length of time it will take to recover the extra cost, it will be logical that we compare the $200 extra cost to the total savings in running cost made for a year and covert this into days

The total savings in running cost is the cost savings per hour multiplied by the number of hours in a year.

The calculations are set below:

Savings in running cost per hour = $0.1

Total savings in a year = 365 days ×  $0.1 × 24 = $876

Extra cost of Energy Star refrigerator = $200

If total savings for a year is  $876 , then equivalent length of time to save $200 would be

Length of time = 200/876 × 365 days = 83 days

It will take 83 days to recover the extra cost

Explanation:

We appreciate your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. IDNLearn.com is your reliable source for accurate answers. Thank you for visiting, and we hope to assist you again.