Mathematics
tekagatox12
16

You are studying for your final exam of the semester. up to this point, you received 3 exam scores of 67%, 68%, and 78℅. to receive a grade of C in the class, you must have an average exam score between 70% and 79% for all 4 exams including the final.

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(1) Answers
latinaberryhill

(67 + 68 + 78 + x) / 4 = 70 (213 + x) / 4 = 70 213 + x = 70 * 4 213 + x = 280 x = 280 - 213 x = 67 (213 + x) / 4 = 79 213 + x = 79 * 4 213 + x = 316 x = 316 - 213 x = 103 lowest u can make is 67, highest u can make is 100

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