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Shureka Washburn has scores of 80, 82, 86, and 50 on her algebra tests.
a. Use an inequality to find the scores she must make on the final exam to pass the course with an average of 74 or higher, given that the final exam counts as two fests
b. Explain the meaning of the answer to part (a).
a. The solution set is {x. (Type an inequality.)

Sagot :

Answer:

Step-by-step explanation:

sum of her four scores=80+82+86+50=298

average score=74

sum of five scores must be > 74*5

or >370

score in final must be greater than 370-298=72

solution set={x;x>72}

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