Q: How do you get the grade average of 90 percent and 10 percent?

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[(100x60) + (Tx40)]/100=Average, where T is you average on the other 40% of your grade. Example: your grade average is 90 before the test. You get a 100 on the big test. [(100x60) + 90x40)]/100 = [6000 + 3600]/100 = 96

If all three tests are worth the same amount of the final grade,then your average is 83.3 percent.We hope it's not in Math.

10% of 90 = 990% 0f 10 = 9(10% of 90) + (90% of 10) = 18

64%

90% of 10 = 0.90 x 10 = 980% of 90% of 10 = 0.80 x 9 = 7.2

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[(100x60) + (Tx40)]/100=Average, where T is you average on the other 40% of your grade. Example: your grade average is 90 before the test. You get a 100 on the big test. [(100x60) + 90x40)]/100 = [6000 + 3600]/100 = 96

If all three tests are worth the same amount of the final grade,then your average is 83.3 percent.We hope it's not in Math.

90 percent is around B and A on a test.

10% of 90 = 990% 0f 10 = 9(10% of 90) + (90% of 10) = 18

64%

Depending on the class and school a 90% grade is usually an A. 90 to 100 are considered, most places, A's.

Nine-tenths ------------------------------------------------------------------------ "percent" means "out of 100" → 90% = 90/100 = (9×10)/(10×10) = 9/10

It will depend on the professor and school policy; but 90% is usually an A-.

If he wants a 90% average for the four tests, the least he can afford to get on thefourth one is 99%.(87 + 87 + 87 + 99) / 4 = 360/4 = 90%Good luck !

Increase 90 by 10 percent, by multiplying 90 times 1.10 or it is 99.

average of 71%, 84% and 90% = 81.67% = (71% + 84% + 90%)/3 = 245%/3 = 81.67%

90% of 10 = 0.90 x 10 = 980% of 90% of 10 = 0.80 x 9 = 7.2