Mathematics, 04.08.2019 06:50, drewje12

Awater-efficient washer costs $400 more than a regular washer and saves 100 l of water for each load. if water costs $5 per 1,000 l and you wash 100 loads each year, how many years will it take you to recoup the extra cost of the machine?

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Awater-efficient washer costs $400 more than a regular washer and saves 100 l of water for each load...