Sam must have an average of 70 or more in his summer coarse to obtain a grade of C. His first three test grades were 75, 63, and 68 Write an inequality represnting the score that Sam must get on the last test to get a C????
2006-11-13 07:03:32 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
74. Multiply 70 by 4 (4 tests) = 280. Add 75, 63, 68 = 206. Subtract 206 from 280 = 74.
2006-11-13 07:08:52 · answer #1 · answered by Serendipity 7 · 0⤊ 0⤋
(75+63+68+x)/4 >= 70
(206+x) >= 280
x >= 280 - 206
x >= 74 (which is the inequality represnting the score that Sam must get on the last test to get a C)
2006-11-13 15:09:13 · answer #2 · answered by DuDeTte 2 · 0⤊ 0⤋
(75+53+58+X)/4 >= 70
2006-11-13 15:07:23 · answer #3 · answered by Nathan B 2 · 0⤊ 0⤋
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2006-11-13 15:12:05 · answer #4 · answered by Sant 2 · 0⤊ 0⤋