Answer:
[tex]x \geq 81[/tex]
Step-by-step explanation:
Shureka Washburn has score of 72,67,82, and 79 on her algebra test.
Let x be the score on the final exam.
[tex]\frac{72+67+82+79+x+x}{6} \geq 77[/tex]
=>[tex]\frac{300+2x}{6} \geq 77[/tex]
=> [tex]300+2x \geq(77)6[/tex]
=> [tex]300+2x \geq 462[/tex]
=> [tex]2x \geq 462-300[/tex]
=> [tex]2x \geq 162[/tex]
=> [tex]x \geq 81[/tex]
