Question

A store advertises 15% off an item that regularly sells for $300 A) what is the sale price of the item? C) if 8% sales tax is charged on the sale price, what is the total with tax?

Answer 1

Okay so for this one what we would do is multiply the amount off by the original amount.
So because we have 15% off what is 15% in decimal form?

Answer 2

2.25

Answer 3

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
2.25
\(\color{#0cbb34}{\text{End of Quote}}\)
Well 15% is 15/100 right? Aka 15% out of 100%

Answer 4

1500

Answer 5

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
1500
\(\color{#0cbb34}{\text{End of Quote}}\)
No.

Okay for this one what we would do is we have 100% or 100 = 1
or 1.00

We see that the decimal moved over to the left 2 places right? 100 --> 1.00

Answer 6

im confused

Answer 7

Okay so for example 100% of- lets say a cookie- is the whole cookie right?

Answer 8

yes

Answer 9

So that would make one whole cookie right?

Answer 10

yes

Answer 11

so 100%=1 right?

Answer 12

Did you get that or-?

Answer 13

kinda got it

Answer 14

Alright so then we have 100% = 1
1 is the same thing as 1.00 right?

Answer 15

yes

Answer 16

So then we have 100%=1.00
Now 100 is the same as 100.0 correct?

Answer 17

yes

Answer 18

Okay now what changed in 100.0 and 1.00, because they both have 1's and 0's and only the decimal moved.

Answer 19

you lost more zeros when you moved the decimal???????

Answer 20

Okay so yeah as you see here you move the decimal to the left twice to make them equal each other right? Because 100.0 ≠ 1.00, but 1.000 does equal 1.00

Answer 21

Do you get that?

Answer 22

yes got it

Answer 23

Okay so now we have 15% from the problem right?

Answer 24

yes

Answer 25

15%=15/100 correct? Because its 15% out of 100% as I said before.

Answer 26

yes correct

Answer 27

Alright so we have 15.0 out of 100.0 and what did we do on the old problem to get the 100 to equal the 0-?

Answer 28

equal the 1* sorry

Answer 29

Do you get what we're doing here?
If not Look at the old picture and see what we did before, and we'd do the same thing now.

Answer 30

move the decimal

Answer 31

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
move the decimal
\(\color{#0cbb34}{\text{End of Quote}}\)
How many times? And in which direction?

Answer 32

2 and to the left

Answer 33

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
2 and to the left
\(\color{#0cbb34}{\text{End of Quote}}\)
Yes! Good job. :)
So now we would do the same with 37, so what would you get when you move it twice to the left?

Answer 34

It would be 0.37 correct?

Answer 35

yes

Answer 36

Okay so now it says an item that regularly sells for $300, so we multiply that and 0.37 (which we got from the last part), and what'd that equal?

Answer 37

;-; rip-

Answer 38

uHm so anyways when you come back after you do that you would subtract what you got from $300 because it says `15% off`on your problem.

Answer 39

Oops sorry I probably confused you- Idk where I got the 0.37 one but anyways you would do the 0.15 not 0.37-

Answer 40

But anyways after that you would get:

200*0.15=$30
200-30=$170

Answer 41

Then after that we have to add the sales tax to what we got:

170 (old answer) *0.08 (8% in decimal form) = $13.6
$170(old answer) + $13.6 (answer we just got) = $183.6

$183.6=$183.60

Answer: $183.60

Answer 42

my bad my computer died for a sec

Answer 43

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
my bad my computer died for a sec
\(\color{#0cbb34}{\text{End of Quote}}\)
Oh lol your fine-

Answer 44

thank you for your help (:

Answer 45

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
thank you for your help (:
\(\color{#0cbb34}{\text{End of Quote}}\)
You're welcome, but do you understand what I did?

Answer 46

And do you think if needed- you could do it by yourself?

Answer 47

yes i got it i understood the whole thing thank you so much

Answer 48

\(\color{#0cbb34}{\text{Originally Posted by}}\) @yourgrandpa
yes i got it i understood the whole thing thank you so much
\(\color{#0cbb34}{\text{End of Quote}}\)
Okay that's good, and I'm happy to help! :)