Steve has these score on the exams for this semester: 89, 92, and 87. How much will have to make on the fourth exam to have a final average of an A (a 92% or better)?

Question

saifoo.khan · Answer

Hey.

saifoo.khan · Answer

Let x represent his score on the fourth exam

 (89 + 92 + 87 + x)/4 ≥ 92 

in order to get an A

268 + x ≥ 92*4

x ≥ 368 - 268

x ≥ 100

anonymous · Answer

Thats not one of my answers though

saifoo.khan · Answer

Wait? why?
what options do u have?

anonymous · Answer

A.100%
B.98% or better
C.96% or better
D.90% or better
 Would it be 100? Im not good at this as you can tell...

saifoo.khan · Answer

Yes, it's A.

anonymous · Answer

help me on something else?

saifoo.khan · Answer

Would love to.

anonymous · Answer

|dw:1327527735835:dw|

A.Add 3 to each side.
B.Subtract 3 from each side.
C.Divide each side by 7.
D.Multiply each side by 7.