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Members in a club are (M(w)=60+4w). After how many weeks will the members be (100)?

Answer and explanation

Correct answer: \(w=10\)

Set the number of members equal to 100: \(60+4w=100\). Thus, \(4w=40\), so \(w=10\). If \(w=9\), the membership would be \(60+4(9)=96\), not 100. Exam tip: In a linear expression, substitute the target value first and then isolate the variable term.

Related tags

Linear EquationsPolynomialsWord ProblemsGrowth RateSolving EquationsLinear Growth And DecayIntroduction To PolynomialsMathematics

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