Algebra
posted by Vilma .
The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the first half of the course, how many points must the student earn in the second half in order to earn an 80% B final grade?

Algebra 
Ms. Sue
120 * 0.81 = 97.2
260 * 0.8 = 208
208  97 = 111 
Algebra 
me
There are 2 halves in the course:
1st half has 120 points
2nd half has 140 points
 for a grand total of 260 points
If a student earns 81% of the points in the 1st half, she earns 0.81 * 120 points
 0.81 * 120 = 97.2 points
If there are 260 total points in the class, and the student wants to earn a B final grade, that is 0.8 * 260 points
 0.8 * 260 = 208 points
208  97.2 = 110.8 points
 the student still needs 110.8 or 111 points from the second half
Respond to this Question
Similar Questions

math, algebra
can someone correct this for me. Problem: A student is nearing the end of a course, and has scored 700 points out of a possible 800 points so far. The student would like to get an A in the course. If there are 1,000 total points available … 
linear equation
A financial advisor is about to build an investment portfolio for a client who has $100000 to invest. The four investments available are A,B,C, and D. Investment A will earn 4 percent and has risk of two “points” per $ 1000 invested. … 
5th math
Nia scored 21 points in the game. If she scored 13 points in the first half of the game, how many points did she score in the second half? 
8th grade math
Hot Shot is an arcade basketball game in which the object is to make as many baskets as possible within the 60second time limit. A player is awarded 2 points for each successful shot during the first 50 seconds of play and 3 points … 
algebra
The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a … 
algebra
The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a … 
math
the final grade for a particular course is calculated by dividing total points earned by total points available. There are 6 quizzes worth 15 points each, and 2 exams worth 50 points each. If a student earns 67 points total on the … 
math
on 3 tests you earned grades of 88%,94%,and 90%. Each test worth 150 points. The finalo exam is worth 250 points. How many points do you need on the final exam to earn 93% of the total points on tests? 
Devry
1. You are part of a team given the task of designing an application to determine a students letter grade for a short course. The application will process a quiz, a project, a midterm exam and a final exam to determine the total score. … 
math
Stewart is playing a video game. He earns the same number of points for each prize he captures. He earned 1,200 points for 6 prizes, 2,000 points for 10 prizes, and 2,600 points for 13 prizes. Which is the dependent variable in this …