Asked by Tyler
You earned the following scores on five science tests: 75, 82, 90,84, and 71. You want to have an average score of at least 80 after you take the sixth test.
a. Write and solve an inequality to find the possible schores that you can earn on your sixth test in order to meet your goal.
a. Write and solve an inequality to find the possible schores that you can earn on your sixth test in order to meet your goal.
Answers
Answered by
Bosnian
( 75 + 82 + 90 + 84 + 71 + n ) / 6 > OR = 80 Multiplly both sides by 6
75 + 82 + 90 + 84 + 71 + n > OR = 6 * 80
402 + n > OR = 480
n > OR = 480 - 402
n > OR = 78
75 + 82 + 90 + 84 + 71 + n > OR = 6 * 80
402 + n > OR = 480
n > OR = 480 - 402
n > OR = 78
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