145k views
4 votes
For your grade percent to improve from and 80% to 81% what score would you need on a test out of 70

User Yehudah
by
7.9k points

1 Answer

0 votes

Answer:

To improve your grade from 80% to 81%, you need to earn an additional 1 percentage point. To calculate the score you would need on a test out of 70 to achieve this improvement, you can set up the following equation:

(Your current total score + Test score) / (Total possible score) = 81%

Plugging in the values:

(80% + Test score) / 70 = 81%

Now, solve for the test score:

0.80 + Test score / 70 = 0.81

Subtract 0.80 from both sides:

Test score / 70 = 0.81 - 0.80 = 0.01

Now, multiply both sides by 70 to isolate the test score:

Test score = 0.01 * 70 = 0.70

So, you would need to score 0.70 or 70% on the test to improve your grade from 80% to 81%.

User AlekseyS
by
9.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.