 Mathematics
5 September, 06:59

# 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?

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Answers (2)
1. 5 September, 08:01
0
Answer: 260 gallons

Step-by-step 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.
2. 5 September, 08:13
0
This familly uses 260 gallons dayly.

Step-by-step 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.
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