Saturday

February 28, 2015

February 28, 2015

Posted by **Amanda** on Sunday, April 22, 2007 at 2:02am.

letting x be for the exam thats missing.

on the left side write: 90+76+66+x divided by 4 then do the symbol the greater than or equal and for the right side write out : 70 divided by 4

so now you should have:

90+76+66+x greater than or equal to 280

then add the test scores

232+x greater than or equal to 280

then subtract 232 from both sides to get x alone

x greater than or equal to 48

therefore he needs 48 to get a 70 average in the class to pass to check:

add all the test scores and divide them for how many they are. so

90+76+66+48 = 280 then 280 divided by 4 = 70

good work.

**Answer this Question**

**Related Questions**

math - An arithmetic student needs an average of 70 or more to receive credit ...

math - I'm just not good at word problems can someone help pleaes thanks a head ...

math correction - an arithmatic student needs an average of 70 or more to ...

math - Scott had an average of 83 on his first three exams. He later scored an ...

algebra - Mike needs at least a 75% average to pass his math course. The class ...

MATH - An arithmetic student needs at least a 70% average to receive credit for ...

math - An arithmetic student needs at least a 70% average to receive credit for ...

math - An arithmetic student needs at least a 70% average to receive credit for ...

math - A mean average of 60 on 7 exams is needed to pass a course. on his first ...

statistics-?mean average with lowest number out? - A mean average of 60 on 7 ...