Question

People use water to​ cook, clean, and drink every day. An estimate of 26.5​% of the water used each day is for cleaning. If a family uses 68.9 gallons of water a day for cleaning​, how many gallons do they use every​ day?

Answer 1

This familly uses 260 gallons dayly.

Explanation:

Since we were given the amount of water this family uses for cleaning we can use a rule of three to know how many gallons they use dayly. This is done by realting 68.9 gallons to 26.5% and solving for 100%. We have:

68.9 gallons -> 26.5%

x gallons -> 100%

68.9/x = 26.5/100

26.5*x = 68.9*100

26.5*x = 6890

x = 6890/26.5 = 260 gallons

This familly uses 260 gallons dayly.

Answer 2

Answer: 260 gallons

Explanation:

An estimate of 26.5​% of the water used each day is for cleaning and a family uses 68.9 gallons of water a day for cleaning​,

Percentage of water used for cleaning= 26.5%

Gallons of water used for cleaning= 68.9

Let the number of gallons used everyday be represented by g. This will give:

26.5% of g = 68.9

26.5/100 × g = 68.9

0.265 × g = 68.9

0.265g = 68.9

Divide both side by 0.265

0.265g/0.265 = 68.9/0.265

g= 260

260 gallons of water are used everyday.