Sam must have an average of 70 or more in his summer coarse to obtain a grade of C. His first 3 test grades we

Sam must have an average of 70 or more in his summer coarse to obtain a grade of C. His first 3 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

Sam must have an average of 70 or more in his summer coarse to obtain a grade of C. His first 3 test grades we
Let x = the grade in the fourth test.





(75+63+68+x)/4 %26gt;= 70
Reply:75 + 63 + 68 + x


_____________





4





is greater than or equal to 70.





Just solve for x.
Reply:He needs a 74% to get at least an average of 70