lily estimate that she was able to answer correctly 35 question out of 40 questions in a test. however, she only scored 75% for the test. find the difference between the actual number of questions that answer correctly and the estimated number of question she thought she able to answer.
see 1:52 AM post.
To find the difference between the actual number of questions Lily answered correctly and the estimated number of questions she thought she was able to answer, we need to determine the actual number of questions she answered correctly.
Given that Lily estimated she answered 35 questions out of 40 correctly, and her test score was 75%, we can set up the following equation:
75% of 40 = actual number of questions answered correctly
To solve for the actual number of questions Lily answered correctly, we can use the equation:
0.75 * 40 = actual number of questions answered correctly
0.75 multiplied by 40 equals 30.
So, Lily actually answered 30 questions correctly.
Now, to find the difference between the actual and estimated number of questions:
Difference = Actual - Estimated
Difference = 30 - 35
Difference = -5
Therefore, the difference between the actual number of questions Lily answered correctly and the number she estimated is -5.