Question

Netan surveyed 460 teenagers to find out their favorite type of movie. He found that 45% of the teenagers surveyed like comedies.

Part A: How many teenagers surveyed like comedies? Show your work. (4 points)

Part B: In another survey, Hannah found that 50% of the total number of teenagers surveyed like thrillers. If 40 teenagers like thrillers, what is the total number of teenagers that Hannah surveyed? Show your work. (4 points)

Part C: Give an example of a situation in which a percentage is greater than 100%. (2 points)

@pooja195 I dont get this at all

Answer 1

total number of objects * percentage of category A= number of objects belong to category A

Answer 2

Don't get it

Answer 3

Ok, lets break this down. SO you have a total of 450 students, so your total number is 450, and it says 40% like comedy, so your percentage is 45%, now to get the number of students who like comdey, you just work out 450*45%

Answer 4

to get part B

Answer 5

or for the whole question

Answer 6

Well, you just do division , beucase now the unknown is the total amount, not the amount of a particular category

Answer 7

divide what?

Answer 8

Well, if A*B=C, now you know B and C, how can you get A?

Answer 9

A is i think 260

Answer 10

Should be80, right?

Answer 11

cause you have A*50%=40, A=80

Answer 12

I'm just very confused this is so hard feel like giving up

Answer 13

Yep, percentage is hard to deal with for a newcomer, reduce it to fractions if you hate it

Answer 14

how

Answer 15

for example, 50% is 1/2 because 50%=50/100

Answer 16

right

Answer 17

so part B is asking what is the number that will give you 40 if you half it

Answer 18

feel better now?

Answer 19

yea

Answer 20

so the answer is obvious, isn't it?

Answer 21

the magic equation to work with is A*B=C, where A is the total number of things, this is the number of students in your question. B is the percentage of a certain category, this is 45% for your part A. C is the number of things within that category. This is the answer for your part A

Answer 22

for part B, because A is the unknown, your do C/B, that gives your 80 as the asnwer

Answer 23

sob the answer is 80

Answer 24

yes,and for C you can make up whatever you what, e.g, the weight gain of my pet cat is 110%

Answer 25

but for A I'm not aloud to put that for an unknown reason

Answer 26

I don't understnad, is the answer wrong or someting?

Answer 27

i don't know when i typed it it said invalid entry

Answer 28

I'll figure A out but thnx for all your help