An arithmetic student needs an average of 70 or more to receive credit for the course. She scored 90, 76, and 66 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course.
2007-05-18 04:35:26 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
(90 + 76 + 66 + x) /4
and the inequality would be the score she needs>= x (whatever you get for x)
2007-05-18 04:39:25 · answer #1 · answered by Goddess of Grammar 7 · 0⤊ 0⤋
90+76+66=232 then average it equals 77R1 So since the person's grades are getting worse I said the person failed their last test so 90+76+66+50=282 and then they would get 70R2 if the got a 52 then it would be a 71. I hope this helps!
2007-05-18 04:38:22 · answer #2 · answered by katlover118 2 · 0⤊ 0⤋
Umm...my math is sorta rusty...but I think the basic outline should be:
90 + 76 + 66 + x
--------------------------- = 70
4
D: Though I've forgotten what the definition of 'inequality' is so I'm not sure if I was helpful at all. XD;
Sorry. I'm silly...
2007-05-18 04:42:13 · answer #3 · answered by Anonymous · 0⤊ 0⤋