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An apartment building is planning on replacing refrigerators in 42 of its units. If the refrigerators cost $501 each, estimate the total cost by rounding both numbers to the nearest 10

Respuesta :

Total Cost = No of Units x Unit cost of refrigerators

Total Cost = 42 x $ 501 = $ 21, 042

Rounding off to the nearest tens,

We have to round down 42 (in $ 21, 042) to 40

Therefore, the total cost will be $ 21, 040

Answer: $21,040

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