SOLUTION: please help me work this out. 1: you score 73,85,81, and 7 on your last four tests. you have one more test. each test is worth 100 points. what must be made on the fifth test to h

Algebra ->  Equations -> SOLUTION: please help me work this out. 1: you score 73,85,81, and 7 on your last four tests. you have one more test. each test is worth 100 points. what must be made on the fifth test to h      Log On


   



Question 644713: please help me work this out.
1: you score 73,85,81, and 7 on your last four tests. you have one more test. each test is worth 100 points. what must be made on the fifth test to have an average of 80% in the class.
2: a parking garage charges $6 for the first hour and $5 for each additional hour or part of an hour. if you park your car from 1 to 5:30, what will be the parking cost.
thank you.

Found 2 solutions by lynnlo, Aaniya:
Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
i am reading your scores right
73,85,81,7

Answer by Aaniya(63) About Me  (Show Source):
You can put this solution on YOUR website!
(1)73,85,81,7,100 to have 80% grade
(2) $26.00