Jason earned scores of 90 points, 82 points, 95 points, and 86 points on four tests. What is the lowest score he can get on the fifth test and still finish with an average score of 90 points?
95 points
96 points
97 points
98 points
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OpenStudy (anonymous):
@SyedMohammed98
OpenStudy (dtan5457):
Set up the equation of
\[\frac{ 90+82+96+86+x }{ 5 }\ge90\]
Eliminate the denominator
\[90+82+95+86+x \ge450\]
Now just solve this simple inequality..
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
353
OpenStudy (anonymous):
70.6
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OpenStudy (anonymous):
it can round up to 71 but other than that its not a choice.
OpenStudy (anonymous):
353
OpenStudy (anonymous):
oh
OpenStudy (anonymous):
448
OpenStudy (dtan5457):
Did you try solving my inquality?
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OpenStudy (anonymous):
sort of
OpenStudy (dtan5457):
90+82+95+86+x≥450
OpenStudy (anonymous):
what dose the x represent
OpenStudy (dtan5457):
just add up the numbers on the first side and subtract on both.
OpenStudy (dtan5457):
90+82+95+86=?
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