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Tuesday, February 10, 2009

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Question
An area 2,500 square feet of grass produces enough oxygen for a family of 4. What is the area of grass needed to supply a family of 5 with oxygen?




Solution
The above world problem is translated to equation form below:
2,500:4 = x:5

Where x is equal to the area, in square feet, of grass needed to supply a family of 5 with oxygen.

Hence, (2500)(5) = 4x
Then, 4x = 12,500
Therefore, x = 3,125

A 3,125 square feet of grass is needed to supply a family of 5 with oxygen.

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