Posted by **pat** on Tuesday, December 18, 2012 at 10:21pm.

if 40 percent of my grade is at a 97 percent average and 40 percent of my grade is at a 92 percent average and my final test is worth 20 percent of the grade then what do i have to score on my final test to have a grade of 91.5 percent or better?

- math -
**Reiny**, Tuesday, December 18, 2012 at 10:33pm
let your final be x

.4(97) + .4(92) + .2x = 91.5

solve for x

I get 79.5

- math -
**Eternal**, Wednesday, December 19, 2012 at 5:12pm
It certainly pays to check your work! I just took a huge science test. I checked it over twice before I turned it in, and I got an A! My score was 94 out of 100! I figure that each time I checked it, I found half of the mistakes that were there at a time. What would have been my score if I had not checked my work?

## Answer This Question

## Related Questions

- math - A bond has an average return of 6.8 percent and a standard deviation of 4...
- Math - average grade - Does anyone know how to calculate average point grade? I ...
- Math, are they all right? - 1. A student raises her grade average from a 75 to a...
- Math - I'm confused.Can someone tell me if I have done this correct.I'm trying ...
- Statistics - I'm confused.Can someone tell me if I have done this correct.I'm ...
- Darin - a teacher knows that 80 percent will score no more than 5 points above ...
- Earth Science - A student finds the density of an ice cube to be 0.80g/cm3; it ...
- Math - I have 4 100 percents, a 90 percent, a 85 percent, and a 95 percent. What...
- Algebra - In his mathematics class, John has taken 3 tests, each worth 20% of ...
- News for Ms. Sue - 1. A student raises her grade average from a 75 to a 90. What...

More Related Questions