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)?

A. 100%
B. 98% or better
C. 96% or better
D. 90% or better

Question

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)?

A. 100%
B. 98% or better
C. 96% or better
D. 90% or better

anonymous · Answer

( (89+92+87+x) / 4) > 92

do you know how to solve that?

anonymous · Answer

um first do i add the 3 numbers and i get 268... am i on the right track?

anonymous · Answer

yep, and since it gives you values ( 100, 98, 96, and 90) you can plug those in and do it that way... see which one works

anonymous · Answer

i think its A. 100%

anonymous · Answer

or you can multiply both sides by 4, and then subtract the rest over, mine was the lazy way

anonymous · Answer

lol the i like ur way better lol yea i think its 100 too... thx!

anonymous · Answer

you're welcome, 100 it is!

anonymous · Answer

:D

anonymous · Answer

all i did was 268+x/4 = 92