SOLUTION: What is the answer to this word problem with work shown?
To pass a course, a student must have an average on four exams of at least 70. If a student scores 40, 78, and 88 on the f
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To pass a course, a student must have an average on four exams of at least 70. If a student scores 40, 78, and 88 on the f
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Question 379118: What is the answer to this word problem with work shown?
To pass a course, a student must have an average on four exams of at least 70. If a student scores 40, 78, and 88 on the first three tests, what must he earn on the fourth exam to pass the course? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! To pass a course, a student must have an average on four exams of at least 70.
If a student scores 40, 78, and 88 on the first three tests,
what must he earn on the fourth exam to pass the course?
:
Let x = required grade to average at least 70
: => 70
Multiply both sides by 4, add up the given values
x + 206 => 280
x => 280 - 206
x => 74 to pass the course
