Thursday

November 26, 2015
Posted by **Delilah** on Friday, March 8, 2013 at 8:24pm.

In a school of 464 students, 89 students are in the band, 215 students are on sports teams, and 31 students participate in both activities.

How many students are involved in neither band nor sports?

(1 point)

160 students

191 students

249 students

433 students

3.

In a marketing survey involving 1,000 randomly chosen people, it is found that 630 use brand P, 420 use brand Q, and 210 use both brands. How many people in the survey use brand P and not brand Q? (1 point)

210 people

420 people

630 people

none of these

My answers:

2. 160 students

3. 210 people

- Math for Ms. Sue please last questions -
**Ms. Sue**, Friday, March 8, 2013 at 8:30pmYour first answer is right. The second is wrong.

- Math for Ms. Sue please last questions -
**Delilah**, Friday, March 8, 2013 at 8:35pmokay thank you. Hold on while I fix it.

- Math for Ms. Sue please last questions -
**Delilah**, Friday, March 8, 2013 at 8:36pmI am confused! Why is the answer wrong? Can you please explain why!

- Math for Ms. Sue please last questions -
**Ms. Sue**, Friday, March 8, 2013 at 8:45pm630 use band P. 210 use both brands.

630 - 210 = 420 use only brand P.

- Math for Ms. Sue please last questions -
**Delilah**, Friday, March 8, 2013 at 8:46pmOh I see! I was doing 620 - 420 = 210! Thank you!

- Math for Ms. Sue please last questions -
**Ms. Sue**, Friday, March 8, 2013 at 8:48pmYou're welcome. :-)

- Math for Ms. Sue please last questions -
**Delilah**, Friday, March 8, 2013 at 8:53pmactually Ms. Sue the answer for 2 was 191...why?

- Math for Ms. Sue please last questions -
**Ms. Sue**, Friday, March 8, 2013 at 8:55pmI don't know. Ask your teacher.

- Math for Ms. Sue please last questions -
**Ms. Sue**, Friday, March 8, 2013 at 9:01pm191 makes no sense since all of the numbers end in 0.

- Math for Ms. Sue please last questions -
**Lady Lyric**, Thursday, March 28, 2013 at 11:45amFor number 2, you have 89 students that are in the band, 215 students that are on sports teams, and 31 students that participate in both activities.

Now remember that they are counting the people that are both, twice. So you need to find out how many people are just in the band and sports teams and not both. So:

89 - 31 = 58 people are in the band

215 - 31 = 184 people are on the sports team

31 people are in the band and are on the sports teams.

Now we add the number of people who play either and or both and then subtract it from how many students are in the school.

184 + 58 + 31 = 273

464 - 273 = 191

So here we see there are 191 students who are involved in neither band nor sports. Hope this helps. :)