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 ?

Mashaal Masha

Mar 24, 2024

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 4G

4G+85+78+98\geq 360

\dfrac{(G+85+78+98)}{4} \geq 90

\dfrac{(85+78+98)}{4}\geq 90-4G

ID: 6600017bf01ca56a54c798c7