On a test, the multiple choice portion makes up 80% of the final score and the essay portion makes up 20% of the final score. Tanya scored an 86 on the multiple choice portion and a 93 on the essay portion of the test. What was Tanya's test score?
To determine the final score of Tanya, we simply add the product of the percentages given with the score she gained in those category. That is, Tanya's score = (0.80)(86) + (0.2)(93) Tanya's score = 87.4 Therefore, Tanya's final score is 87.4%.
