PLEASE HELP ME EXPLAIN AND GIVE ME AN EXAMPLE. THANK YOU.! ๐

1. A laptop is on sale at $1050. The original price was $1500. What percentage was discounted?

2. From 3.6 kg of fresh salmon, you can get about 2880g of smoked salmon. What percentage of the fresh salmon is lost by smoking?

## Homework Help Plz!!!!!!!!!!!!!!!!!!!!!!! 10 Points For An Explained And Correct Answer?

February 5th, 2013 admin

1 (old – new) / old

#2 – ditto, after converting to same base

1)To find the discount percentage..do this :-

(1500-1050/1500)*100 = 30%

eg : suppose you buy a pencil for dollar 2. and decide to sell it at dollar 1.5..you do this:

(2-1.5/2)*100

2) OK

I don’t really know about salmons..but do this:

3.6kg = 3.6*1000g = 3600g.

now, to find percentage, divide the smoked salmon grams by fresh salmon..

so..we are at : (2880/3600)*100 = 80%

it’s the same as earlier except, you don’t need to subtract anything ๐ ๐

ans for first question is 30%

ans for second is 20%

1 (1500-1050)/1500*100 = 30%

(Old price- new price) / old price, then multiply by 100 to get the percentage.

2 (3600-2880)/3600*100 = 20%

1.) Yu need to kno wat % is discount-

frst yu need to kno how much is the discount offered, so discount-

1500-1050=$450

So discount=$450

Now yu need to kno the % of discount so simply take-

450รท1500(original price)ร 100(percentage)

=30

answer-30%

2.)here you need to kno what % of salmon is lost, so frst find amount of lost salmon-

(3.6kg=3.6ร1000 so amount=3600gm)

3600-2880=720 gm

Now as we did in frst part, find the percentage-

720รท3600(original amoumt)ร 100

=20

Answer-20%

hope you get it!

1. K so, the Lappy was sold at 1050 dollars and the original price was $1500 so the money discounted down was 1500-1050=$450. Percentage is always calculated on the original price, because the discount was levied on the original price so :

discount

—————— X 100

Original value

450

——- X 100 [ (450/1500)X100 ]

1500

so the answer by calculating is 30%

2. 3.6 kg of salmon is same as 3600g(as 1kg=1000g). So if you can relate this to the laptop question,the original price corresponds to 3600 g of fresh salmon and 2880 g corresponds to the salmon that has been smoked. so the amount of salmon lost by smoking(corresponding to amount of discount) is 3600-2880=720 g.So by same formula:

720

——– X 100

3600

so by calculating we get 20% as the answer

I would suggest Google some more questions of percentage if u have got the nick……..to get it perfectly

Anyways i hope i helped ^.^ .Anything anytime ask and get

U

$1500 – discount = $1050

so the discount is $1500 – $1050= $450

so how much 450 in percentage/ if $1500 X (Y%) = $450 by doing cross multiplication

den Y/100 =450/1500 so Y/100 = 0.3 therefore Y = 0.3 X 100 which gives Y =30%

2) 3.6 kg in g is 3600 g where 3600g – 2880g = 720g

the lost salmon is 720g in weight so 720g over the total salmon weight is 720/3600 X 100

will give in percentage of 20%

Really, these are quite basic math questions. I don’t think you were paying full attention during class!