The Cost of Drilling a Water Well Is Jointly Proportional

question 37

Multiple Choice

The cost of drilling a water well is jointly proportional to the length and diameter of the steel casing. If a 29-foot well using 3-inch casing cost $957, find the cost of a 35-foot well using 6-inch casing.

• A) $2,310
• B) $2,311
• C) $2,313
• D) $2,312
• E) $2,309

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