Math Help
I am trying to figure out what grade my child needs to earn on his final exam in order to get a B in his class.
The final is 15 percent of his grade.
He currently has a 91.
I tried doing the math the way I thought it should be done, but the way I did it, he could get a failing grade on the exam and still get a B. That does not seem right to me.
I did (91)(.85) + .15x = grade he wants and solved for x.
That seems too simplistic.
Help?
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