Janine is considering buying a water filter and a reusable waterbottle rather than buying bottled water. Will doing so save hermoney?
First, determine what information you need to answer thisquestion,
How much water does Janine drink in a day? She normally drinks 4bottles a day, each 16.9 ounces.
How much does a bottle of water cost? She buys 24-packs of 16.9ounce bottles for $3.79.
How much does a reusable water bottle cost? About $10.
How long does a reusable water bottle last? Basically forever(or until you lose it).
How much does a water filter cost? How much water will theyfilter?
A faucet-mounted filter costs about $28 and includes one filtercartridge. Refill filters cost about $33 for a 3-pack. The box sayseach filter will filter up to 100 gallons (378 liters)
A water filter pitcher costs about $22 and includes one filtercartridge. Refill filters cost about $20 for a 4-pack. The box sayseach filter lasts for 40 gallons or 4 months
An under-sink filter costs $130 and includes one filtercartridge. Refill filters cost about $60 each. The filter lasts for500 gallons.
Which option is cheapest over one year (365 days)? Select an answerWater bottles faucet-mount filter filter pitcher under-sinkfilter
The cheapest option saves her $ over a year?
Give your answer to the nearest cent. Pro-rate the costs ofadditional filters (so if you only use part of a filter, only countthe corresponding fraction of the filter cost).
