SOLUTION: Kyle Thompson has an average of 92 for the last three math quizzes. What must he make on the fourth quiz to raise his average to 94?
Please show how to get the answer. Could no
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Please show how to get the answer. Could no
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Question 665037: Kyle Thompson has an average of 92 for the last three math quizzes. What must he make on the fourth quiz to raise his average to 94?
Please show how to get the answer. Could not figure this one out. I know the answer is 100 but could not see how they came up with that answer. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Kyle Thompson has an average of 92 for the last three math quizzes. What must he make on the fourth quiz to raise his average to 94?
:
The trick here is to understand what is going on, he had a 92 av on the last 3
tests therefore, their total has to be: 3*92 = 276
:
Let x = the required grade on the 4th test
: = 94
mult both sides by 4
x + 276 = 4(94)
subtract 276 from both sides
x = 376 - 276
x = 100 on the 4th test
:
Did this make sense to you now? C
