Jaime's test scores are 88,100,95, and 84.
what does she need on her last test to make an average of 90 overall?
2006-10-04 05:19:22 · 6 answers · asked by NEHA 2 in Education & Reference ➔ Homework Help
show me how did u get that answer? please
2006-10-04 05:27:00 · update #1
THANKS guys
2006-10-04 05:41:36 · update #2
thanks all i got the answer
2006-10-10 05:25:36 · update #3
83
2006-10-04 05:22:49 · answer #1 · answered by jonn0boy 3 · 0⤊ 0⤋
The sum of the previous tests is 88+100+95+84=367.
In order to have an average of 90 with the addition of a 5th test, the sum of the 5 tests should be 90 x 5 = 450.
450 - 367 = 83. This means that 83 is what the final test needs to be to give the average of 90 overall.
2006-10-04 12:27:18 · answer #2 · answered by Richard H 2 · 0⤊ 0⤋
Please note that Jaime has answered 5 tests overall (taking into account the last test). Hence if she needs an average of 90 she should achieve a total marks of 90* 5 = 450;
Her total markes in the first 4 tests are - 88, 100, 95, 84 totaling 367
Hence her last test marks should be: 450 - 367 = 83
2006-10-04 12:40:13 · answer #3 · answered by Devc 1 · 0⤊ 0⤋
83
2006-10-04 12:28:09 · answer #4 · answered by lazy_eye19 1 · 0⤊ 0⤋
83 is for sure!
2006-10-04 13:14:07 · answer #5 · answered by Anonymous · 0⤊ 0⤋
she gottu get 83....
2006-10-04 12:22:15 · answer #6 · answered by soni 1 · 0⤊ 0⤋