Question

nora wants to find her average grade in her science class. she has earned a score of 85% on two tests, 92% on three tests, and 94% on her most recent test. what is noras mean, or average, test score?
89.2%
90%
90.3%
91%

Explanation:

Step1: Calculate total points

$(85 \times 2) + (92 \times 3) + 94 = 170 + 276 + 94$

Step2: Calculate total number of tests

$2 + 3 + 1 = 6$

Step3: Compute average score

$\frac{170 + 276 + 94}{6} = \frac{540}{6}$

Answer:

90%