Posted by **jasmine20** on Tuesday, January 9, 2007 at 7:38pm.

can someone correct this for me please.

Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.

Total marks in 3 test 75+63+68 >= 206

Let score in the last test = x

Total score in 4 test = 206 + x

Average in 4 test = A >=(206 + x) / 4

A>= 70

## Answer this Question

## Related Questions

- math correction - can someone correct this for me.or teach me if i'm wrong ...
- algebra - Sam must have an average of 70 or more in his summer course to obtain ...
- math - Ted must have an average of 70 or more in his summer course to obtain a ...
- algebra - Sam must have an average of 70 or more in his summer course to obtain ...
- Maths - Jim has grades of 84, 65, and 76 on three math tests. What grade must he...
- math - jim has grades of 84, 65, 76 on three tests. what grade must he obtain on...
- math - Jim has grades of 84, 65, and 76 on three math tests. What grade must he ...
- math - If you earn the grades of 81, 84, 78, 80 in four tests what should your ...
- Math - Jeremy got scores of 93,82,91, and 88 on his first four math test. What ...
- algebra - to pass a course with an A grade, a student ,must have an average of ...