anonymous
  • anonymous
on the first four tests of the term your average is 84%. You think you can score 96% on each of the remaining tests. How many consecutive test scores of 96% would need to bring your average up to 90% for the term? I am learning about rational equations if that helps.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
4
anonymous
  • anonymous
how
anonymous
  • anonymous
well the way I did it was the average of 96 and 84 is 90 because (84+96)/2=90 So if you have 4 84's then you have to balance it out with 4 96's. You take 84*4+96*4 and that equals 720 then divide that by the total number of tests which is 8 and that equals 90.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

dumbcow
  • dumbcow
\[\frac{84*4 + 96n}{4+n} = 90\] solve for n multiply (4+n) on both sides then distribute and combine like terms \[84*4 + 96n = 90n + 90*4\] \[6n = 4(90-84)\] \[n=4\]
anonymous
  • anonymous
thanks
anonymous
  • anonymous
Thanks dumbcow I couldn't remember the equation I just did it by logic.
dumbcow
  • dumbcow
no prob

Looking for something else?

Not the answer you are looking for? Search for more explanations.