Friday

February 27, 2015

February 27, 2015

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

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 ...

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 ...

Statistics 250 - Final averages are typically approximately normally distributed...

Math (Help me please*) - Instructions says to: Write words to match each ...

Statistic - Final averages are typically approximately normally distributed with...

Math Statistics - Kesha's mean grade for the first two terms was 74. What grade ...

Math Statistics - Kesha's mean grade for the first two terms was 74. What grade ...

STAT 250 Probability - Final averages are typically approximately normally ...