SOLUTION: Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass the course, the average on the three tests must be at least 60. For what rang

Question 55294: Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass
the course, the average on the three tests must be at least 60. For what range of scores on his last test will Tilak pass the course?
Solve the problem by using an inequality.: Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass
the course, the average on the three tests must be at least 60. For what range of scores on his last test will Tilak pass the course?
Solve the problem by using an inequality.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Tilak made 44 and 72 on the first two tests in algebra, and has one test remaining. For Tilak to pass the course, the average on the three tests must be at least 60. For what range of scores on his last test will Tilak pass the course?
Solve the problem by using an inequality.
:
Let x = the unknown grade required to bring the average grade to at least 60
:
(x + 44 + 72)/3 => 60
:
Mult eq by 3 to get rid of the denominator, then you have:
x + 44 + 72 => 180
:
x + 116 => 180
:
x = > 180 - 116
:
x => 64
:
Check 64 + 44 + 72 = 180; divide by 3 = 60

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