You Need 50 Pounds of Two Commodities Costing $1 $y = 1.80 x + 2.40 ( 50 - x )$

question 87

Multiple Choice

You need 50 pounds of two commodities costing $1.80 and $2.40 per pound. Find the inverse function of the cost function $y = 1.80 x + 2.40 ( 50 - x )$ .

• A) \(y = \frac { 5 } { 3 } ( 240 - x )\)
• B) \(y = \frac { 10 } { 3 } ( - 120 + x )\)
• C)\(y = \frac { 5 } { 3 } ( - 240 - x )\)
• D) \(y = \frac { 5 } { 3 } ( 120 - x )\)
• E) \(y = \frac { 10 } { 3 } ( 120 + x )\)

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