Wendy answered 85% of the questions on her history test correctly. There were 40 questions on the test and all the questions had equal value. How many questions did Wendy NOT answer correctly on her test?
first you need to find 85% of 40 questions. turn 85% into the decimal .85... you do that by dividing 85 by 100. the formula is x=.85(40) and that gives you x=34. so now you know that Wendy had 34 out of 40 questions right, so now to find out how many she had wrong you subtract 34 from 40 and get 6. Wendy did not answer 6 questions correctly. Another faster way of doing this would be to realize since she had 85% right, then you know she had 15% wrong, so x=.15(40) , so x=6. Hope this helped.
To find out how many questions Wendy did not answer correctly on her test, we first need to find the number of questions she actually answered correctly.
Wendy answered 85% of the questions on her history test correctly. This means she answered 85 out of 100 questions correctly.
To find the number of questions she answered correctly on the test, we need to calculate 85% of the total number of questions.
First, we need to find 85% of 40:
85% = 85/100 = 0.85
0.85 * 40 = 34
Therefore, Wendy answered 34 questions correctly on her history test.
To find the number of questions she did not answer correctly (incorrectly or left unanswered), we subtract the number of questions she answered correctly from the total number of questions:
40 - 34 = 6
So Wendy did not answer 6 questions correctly on her history test.