Question

Michelle is taking a 50 question science test in which each question is worth 2 points each. If she must get at least a 92 on the test to make an A for the class, how many question must she get correct?”

Answer 1

Michelle's score is given by the following formula

$S=2\cdot C$

where, S is her final score and C represent the number of correct answers.

Since she must get at least a 92, then S = 92

therefore,

$\begin{gathered} 92=2\cdot C \\ C=\frac{92}{2} \\ C=46 \end{gathered}$

She must get at least 46 correct questions.