SAT Question df32b09c: Answer, Explanation & Desmos Solution

Tom scored $85$ , $78$ , and $98$ on his first three exams in history class. Solving which inequality gives the score, $G$ , on Tom's fourth exam that will result in a mean score on all four exams of at least $90$ ?

Difficulty:Easy

$90 - (85 + 78 + 98) \leq 4 G$

$4 G + 85 + 78 + 98 \geq 360$

$\frac{G + 85 + 78 + 98}{4} \geq 90$

$\frac{85 + 78 + 98}{4} \geq 90 - 4 G$

Explanation

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Why the other choices are wrong

SAT Question df32b09c: Linear Inequalities answer and explanation with Desmos solution

Explanation

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Why the other choices are wrong