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3241004551 [841]
3 years ago
7

A student has test scores of 68%, 75%, and 79% in a government class. What must she score on the last exam to earn a B (80% or b

etter) in the course?
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
3 0
68% +75 % +79 % +x ÷4≥ 80%
.68 + .75 + .79+x ÷4* 4 ≥ . 80*4
.68 + .75 + .79+x ≥ 3.2
2.22 + x ≥ 3.2
2.22 -2.22+x ≥ 3.2 -2.22
x ≥ 0.98
She has to get at least 98% to get an B.
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