A student wants an A in his Math class, so must finish the semester with a 90 average. So far, he has taken 4 tests ( 90, 85, 92, 80) and taken the midterm (93). The midterm is worth 2 test grades, and the final is worth 3 test grades. What score must he achieve on the final to get an A? The grade is made up of 9 parts, so to achieve an average of at least 90, a student would need 810 (9x9) points. Add the 4 test grades and the midterm grade twice giving 6 parts. Subtract this number from 810 to find the points needed for the last 3 parts which represents the grade earned on the Final. Divide that number by 3 and round up to the next whole number to find the lowest Final grade needed to get an A for the course. The lowest Final test grade needed for an A is
A student wants an A in his Math class, so must finish the semester with a 90 average. So far, he has taken 4 tests ( 90, 85, 92, 80) and taken the midterm (93). The midterm is worth 2 test grades, and the final is worth 3 test grades. What score must he achieve on the final to get an A? The grade is made up of 9 parts, so to achieve an average of at least 90, a student would need 810 (9x9) points. Add the 4 test grades and the midterm grade twice giving 6 parts. Subtract this number from 810 to find the points needed for the last 3 parts which represents the grade earned on the Final. Divide that number by 3 and round up to the next whole number to find the lowest Final grade needed to get an A for the course. The lowest Final test grade needed for an A is
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:A student wants an A in his Math class, so must finish the semester with a 90
average. So far, he has taken 4 tests ( 90, 85, 92, 80) and taken the midterm (93).
The midterm is worth 2 test grades, and the final is worth 3 test grades. What score
must he achieve on the final to get an A?
The grade is made up of 9 parts, so to achieve an average of at least 90, a student would need 810 (9x9)
points. Add the 4 test grades and the midterm grade twice giving 6 parts. Subtract this number from 810
to find the points needed for the last 3 parts which represents the grade earned on the Final. Divide that
number by 3 and round up to the next whole number to find the lowest Final grade needed to get an A
for the course.
The lowest Final test grade needed for an A is
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