Question

Janine is considering buying a water filter and a reusable bottle rather than buying bottled water. Will doing so save her money?

First, determine what information you need to answer this question, then click here to display that information (along with other info)

How much water does Janine drink in a day? She normally drinks bottles a day. each 16.9 ounces.

How much does a bottle of water cost? she buys 24-packs of 16.9 ounce bottles for $3.29

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 they filter?

- A faucet-mounted filter cost about $28 and includes one filter cartridge. Refill filters cost about $33 for 3-pack. The box says each filter swill filter up to 100 gallons (378 liters)

- A water filter pitcher costs about $2 and includes one filter cartridge. Refills cost about $20 for a 4-pack. The box says each filter last for 40 gallons or 4 months

- An under-sink filter cost $130 and includes one filter cartridge. Refill filters cost about $60 each. he filter lasts for 500 gallons.

Which option is cheapest over one year (365 days) ?

A. water bottles

B. Faucet-mount filter

C. Filter pitcher

D. Under-sink filter

The cheapest option saves her $_____ over a year.

Given your answer to the nearest cent. Pro-rate the costs of additional filters (so if you only use part of a filter, only count the corresponding fraction of the filter cost)

Answer 1

. $10 can water bottles cast for 365 days bottle Janine dinks bottles a day, each 16.8 mert 24 packs of 16.9 once bottles cast 3.24 $ he wable bottle cost Life of Robesable bottle = Lifetime Last of a faucet mounton filter= $28 Refill cost = $3 for 3 pack . Each filte &sef will filter 100 gallon (386) water filter pitchat cost about $2 and include in ender i filler cost of pitcher= $20 for a pack. Each filhe pitchen will filter to gallons of nate. Under sich filter cest = $130 - $50 for Soo gallow. Refill Refill cast Cost of 2 bed once - 3.20 24 0.137 Fl 365 days. do 137x365 - $50.005

: Fa Bottle cost = $10 Filter cast = $284 water need - 6168.5 A for 365 days = (16,9x365) ounces =48019 gelen Each filter gives 180 gellows For 100 gallons price is $482811 For 48.18 gallas price = $ Bag 5.30 Onetime / Fixed price & filte: 28-11=415 Totel wit fe flanet filter Botle cost Bottle cost + filter cest t Onetimo cast 10+ 5.30 tis - $ 30.30 (C) Pitche filter Pitchen cast Bottle price - $10 $2 Roff Refill est = 45 for 24 months after first of 4 months. cost of pitches for you i gallan water = 10 + 2+ (Sx2) Unser Sinh filter cost a $130 feat Refill cost $60 One time filter cesta 130-60 to $ Filtar Cast Soogellows = $22 D 4

(3 Fal 48.19 For 500 gellow price = $60 gallow, puce - 60 x 48.18 =4.015 Total cost for 48.18 gellows = 70+ 10 + 4,95 = $84.015 The cheapest of option for Janina is pitchen filter option @ and it saves he $28.005 $28.005 over a year.