Question

i need someone to please help me with this dba. my mom is going to take all of my privileges away from me if I don't pass...i really don't understand math that well so someone please help.

Answer 1

Do you know how to find the percent of change? How do you setup the proportion? question 1 of 5

Answer 2

Don't worry. Legendary @ganeshie8 to the rescue ;)

Answer 3

\[\large \dfrac{\text{percent change}}{100} = \dfrac{\text{change}}{\text{starting value}} \]

Answer 4

thats the proportion^^
multuply both sides by 100 to get the `percent change`

Answer 5

Notice that we're taking the percent in reference to the "starting value"

Answer 6

ive got another question

Answer 7

Okay, ask...

watch this for more info on calculating percent of change and examples
http://www.virtualnerd.com/pre-algebra/percents/change/change-examples/percent-change-definition

Answer 8

what is the percentage proportion formula? What is the caution about for this formula?
Question 2 of 5

Answer 9

above given is the percentage proportion formula

Answer 10

well what is the caution then?

Answer 11

Make sure you divide the "original/starting value" and not the "new/final" value

Thats the caution they're asking about I think

Answer 12

here's another question

Answer 13

@ganeshie8

Answer 14

yeah ?

Answer 15

what is a ratio and how can they be compared?

Answer 16

http://www.mathsisfun.com/numbers/ratio.html

Answer 17

@ganeshie8 help plzzz

Answer 18

two ratios can be compared by forming a proportion

Answer 19

ganeshie plzz sirrr

Answer 20

pm me surd :)

Answer 21

what are the three different ways to express a ratio?

Answer 22

@ganeshie8

Answer 23

Like this, 3:5
3/5 and 3 to 5

(the "to" is important

Answer 24

thanks one more?

Answer 25

Sure

Answer 26

hold on one sec

Answer 27

what is the simple interest equation and how do you solve it

Answer 28

Let's use this.
Equation:
A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal
r = R/100 = 3.875%/100 = 0.03875 per year,
then, solving our equation

A = 10000(1 + (0.03875 × 5)) = 11937.5
A = $ 11,937.50

The total amount accrued, principal plus interest,
from simple interest on a principal of $ 10,000.00
at a rate of 3.875% per year
for 5 years is $ 11,937.50.

Answer 29

i don't get it

Answer 30

walk me through it

Answer 31

Okay, hold on a second.

Answer 32

So, let's say we have $4500.00 at 9.5% for 6 years.
You can order it like this
So, first you take the percent and divide it by one hundred.
9.5 divided by 100 = 0.095.
Now you order it like this
(4500) (0.095) (6)
Now just solve.
So, 4500 times 0.095 times 6 = $2565.

Answer 33

We can do another if you want.

Answer 34

hold on don't leave i want to figure this out

Answer 35

I won't.

Answer 36

yeah these are questions that are going to be asked during a dba and the review of it says
"know the simple interest equation and be able to use it in solving a problem

Answer 37

Yeah, that is it. Just divide the percent by 100, then multiply everything.

Answer 38

i am not going to do good on this dba

Answer 39

Just do you best.

Answer 40

i cant remember anyhting and i can't talk to my teachers

Answer 41

but if i dont get this question i am sure im going to get the other four right and that is four out of five so...

Answer 42

can you walk me through how to divide please just to make sure i got it down

Answer 43

Yes.

Answer 44

So, I think long division is easiest.

Answer 45

Use this. http://www.mathsisfun.com/long_division.html

Answer 46

i might just do it on a calculator when im on the phone with her

Answer 47

Yes, that might work too.