Answered

Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Get immediate and reliable answers to your questions from a community of experienced professionals on our platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Suppose there are 20 questions on a multiple-choice test. If 25% of the answers are choice B, how many of the answers are not choice B?

Sagot :

heyimadog
[tex]b: \frac{x}{20} \frac{25}{100} \\ 100x=500 \\ x=5 \\ others: 20-5=15[/tex]
NekoKeying
This is one method: Part=Percent • Whole
Your part is x since you don't know it yet. Your percent is 25%. Your whole is 20. However, you have to turn 25% into a decimal, which would be .25.
Your new equation is now x=.25•20. When you multiply .25 by 20, you should get 5. Therefore, 5 is how many questions ARE B. However, you need to find the questions that aren't B. This is why you would have to subtract 5 from 20, giving you 15 questions that are NOT B. That would be your final answer.

-

An easier way is to divide you whole by 100 and multiply it by the percentage. 20 divided by 100 is .2. Then you multiply it by 25, giving you 5.
Thanks for stopping by. We are committed to providing the best answers for all your questions. See you again soon. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for visiting Westonci.ca. Stay informed by coming back for more detailed answers.