Math
posted by Kaai97 .
Jackie scored 82 and 88 on her first two quizzes. Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 80 and 85, inclusive.
a. 80=<(82+88+n)/3=<85;70=<n=<85
b. 70=<(82+88+n)/3=<85;80=<n=<85
c. 80=<(82+88+n)/3=<85;70<n<85
d. 82=<(80+85+n)/3=<88;70=<n=<85

80=<(82+88+n)/3=<85
80*3 = 240
82 + 88 = 170
240</= = 170+n
n>/= 70
85*3 = 255
n + 170 </= 255
n </= 85
so
d 
Do your own work.

Jeez @AlphaCureMom.... Jishka is here for help!
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