Question

Please Help Me Understand This

Answer 1

Daniel wants to have a 90 average in his math class at the end of the year. He is trying to determine what he needs to get on his final exam, which accounts for 10% of his grade, for this to work. Tests are weighted 50% of the grade, and he currently has a 85 for his test average; quizzes are weighted 15% of his grade, and he currently has a 95 quiz average; homework is weighted 15% of his grade and he currently has a 98 homework average; and projects are weighted 10% of his grade and he currently has a 92 project average.

What is the lowest whole percentage Daniel can make on his final exam for him to end up with a 90 in the class?

Answer 2

Think of the "weight" as points, out of 100. And the percentage he gets in a certain weight is the percentage times the weight to get the points. So usually it would be 50+15+15+10=100, but since he didn't get 100% of all the points in each seperate weight, those numbers will be decreased. For example quizzes goes from 15 points to (15*.95)=14.25. So what you want to do is add up all the points he currently has and then we'll moev onto the next step.

Answer 3

Oooh, ok I misread sorry, the final test is seperate from the other tests.

Answer 4

Sorry I'm back now.

Answer 5

So it would be 10+50+15+15+10=100.

Answer 6

So...I'm sorry I'm a lil slow in math.

Answer 7

Would you like me to go over it again?

Answer 8

Oh wait sorry here are the answer choices.
A. 91
B. 91
C. 93
D.94

Answer 9

A and B are the same one tho

Answer 10

92 *