Posted by **Jamie (a girl)** on Thursday, December 8, 2011 at 9:33pm.

If i have a test average of 74% and i need to make an average of at least 83% what would the lowest grade i could make be on the final test? (tests are worth 20%)

- math -
**drwls**, Thursday, December 8, 2011 at 9:38pm
Which tests are worth 20%?

If previous tests count 20% and the final test counts 80%,

0.2*0.74 + 0.8*X = 0.83

0.8X = 0.682

X = 85.3%

- math -
**Jasmine**, Friday, December 9, 2011 at 10:43am
Explain and show how you would estimate 0.5 x 4.62. Then justify why this is a good choice for arriving at the correct answer.

- math -
**Jamie (a girl)**, Sunday, December 11, 2011 at 11:31pm
all tests are worth 20 percent

## Answer This Question

## Related Questions

- math - The average of 5 numbers is 28. What would the 6th number have to be to ...
- Math - The word problem is: Nancy's quiz average is a 74. Her quiz average is 1/...
- math - A math teacher calculates grades as follows:Grade=[2 test averages+quiz ...
- math - Julie wants to have a 90 average in her math class at the end of the year...
- math grade 12 - Sara got 85% and 89% on her first two Maths tests. What must she...
- programming - Professor Merlin has asked you to help him. He has 5 students who ...
- Math - Kami has an average of 64% in her class. School ends soon and she would ...
- math - If you earn the grades of 81, 84, 78, 80 in four tests what should your ...
- Math - Karl's scores on the first five science tests are shown in the table. ...
- H S Algebra - Kelly made a 94 and an 80 on the first two science tests. What ...

More Related Questions