Name: SAT Math Help & School Math Mastery
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#11915

inequalities

average

easy

75 sec

Sarah scored 88 and 92 on her first two tests in math class. If she has one more test to take, solving which inequality gives the score, $x$ , Sarah needs on the third test to have a mean score of at least 90 on all three tests?

A.

$88 + 92 + x \geq 90$

B.

$\frac{88 + 92 + x}{3} \geq 90$

C.

$\frac{88 + 92}{3} + x \geq 90$

D.

$\frac{88 + 92 + 90}{3} \leq x$