Question

The Navarro family uses an average of 225 gallons of water per day, 5 gallons of which goes through the family's water filter. The Navarros water filter can process 450 gallons before it needs to be replaced. After how many days of average water use will the family need to replace their filter?

Answer 1

see friends
family's per day water consumption for filter is 5 gallons.

Max capacity of filter to filler water it's 450 gallons.

then let the filter needs to be replaced in x days.

so 5 X x = 450 days

so x = 450/5 =90 days.

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