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economic engineering

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Practice :
We would like to buy a refrigerator for our new corner-shop that has more 50% more capacity than
our current refrigerator (which cost $1000). The appropriate power sizing exponent for this type
of equipment is 0.725. Use the power-sizing model to estimate the cost of this new refrigerator!
Answer :
Dik : - Old refrigerator = $ 1000,- New refrigerator = kapasitasnya 50 % lebih banyak dari kulkas lama
-x
= 0,725
Dit : menggunakan power-sizing model, harga kulkas baru = $...
Penyelesaian :
Misalkan, Capacity of old refrigerator = 1
Maka, capacity of new refrigerator = 50% lebih banyak dari capacity of old refrigerator
= 0,5 + capacity of old refrigerator
= 0,5 + 1
= 1,5
Maka,
𝑐𝑜𝑠𝑡 𝑜𝑓 𝑛𝑒𝑤 𝑟𝑒𝑓𝑟𝑖𝑔𝑒𝑟𝑎𝑡𝑜𝑟 = 1,341733 ($ 1000)
𝑐𝑜𝑠𝑡 𝑜𝑓 𝑛𝑒𝑤 𝑟𝑒𝑓𝑟𝑖𝑔𝑒𝑟𝑎𝑡𝑜𝑟 = $ 1341,733 ~ $ 1.342,- (pembulatan)
Maka, harga dari kulkas baru = $ 1.342,-
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