180k views
2 votes
Someone please answer and explain a & b. Image attached, thanks.

Someone please answer and explain a & b. Image attached, thanks.-example-1

1 Answer

5 votes

Jada has earned a total of 400 points so far.

141 + 87 + 81 + 91 = 400

There are a total of 450 points possible so far.

150 + 100 + 100 + 100 = 450

Jada has 400/450 or about 88.89% of the possible points, so no, she does not have 90%.

Adding in a 100-point test, the total number of points would become 550 and 90% of 550 is 495 points.

0.90 x 550 = 495

To finish the class with an A, Jada needs to have 495 points. She currently has 400 points. This means she needs a 95 on the final to finish the class with an A.

User Jim Lynn
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories