Question

the price of shares in a company is falling by an average of 2% per day. what percentage of their value are there after 2 days? (geometrical applications)

Answer 1

Unclear. Falling by an average of 2% over what time period? Annually?

Answer 2

Okay, 2% per day for 2 days. What say you?

Answer 3

It fell 4%.....right ?

Answer 4

no

Answer 5

If it was 200 when it started, where would it be after one day?

Answer 6

How do you know it was 200 when it started ?

Answer 7

I don't, it's just a question. Answer, please. You have 30 seconds.

Answer 8

after one day it would be (.02)(200) = 4
200 - 4 = 196
right ?

Answer 9

on the second day what is .02 of 98?

Answer 10

Excellent. Now do the EXACT same thing with 196. Do NOT skip the first step because you think you already know what it is. Do it ALL.

Answer 11

What do you mean? do the same thing with 196. .02 of 196=?

Answer 12

Correct. EXACT same thing.

Or, just answer the question, if it was 196 on one day, what will it be on the next day?

Answer 13

196-(.02*196)=? i'm not supposed to be giving answers to every problem

Answer 14

(.02)(196) = 3.92
196 - 3.92 = 192.06

Answer 15

right on!

Answer 16

I still don't understand where you were getting the 200 from ?

Answer 17

I assume from a question

Answer 18

read the original question.....

Answer 19

I see what you mean. I assumed on the first day you had 100% and subtracted 2%.then you went to 98 and figured .02 % of that

Answer 20

wouldn't you have to know the original price of the shares to determine what percentage of their value is left after 2 days ?

Answer 21

does it start with 100% ?

Answer 22

Okay, now stop doing it in two steps.

One Day in Two Steps.
200 * 0.02 = 4
200 - 4 = 196

One Day in One Step
200 - (200*0.02) = 200(1 - 0.02) = 200*0.98

Two Days in One Step
\(200*(0.98)^{2}\)

Okay, that's enough background and playing around with my made-up numbers. Answer the question. You do NOT need the original price. I made up 200 just to have something concrete. It matters not. Answer the question.

Answer 23

so after 2 days you have 96.34% of what ever value. Does this make sense.?

Answer 24

(.02)(100) = 2
100 - 2 = 98
(.02)(98) = 1.96
98 - 1.96 = 96.04%

Answer 25

What am I doing wrong.....I didn't get what you got ?

Answer 26

yes you are right- good job

Answer 27

thanks....I understand now.....I feel stupid for not catching on sooner

Answer 28

Where is @yasmin95 ?

Answer 29

I don't know....she isn't answering

Answer 30

I doubt if a texaschic 101 with a smart score of 70 would have much problems witha question like this

Answer 31

I just didn't know what to start with.....it now makes sense to start with 100%

Answer 32

it would have come to you