What is the discount? What is the sale price of the DVD? Problem:В In a video store, a DVD that sells for $15 is marked, '10% off'. Now that we have a procedure, we can solve the problem above. To find the sale price, subtract the discount from original price.To find the discount, multiply the rate by the original price.The rate is usually given as a percent.To solve this problem, we need a procedure. So '10% off' refers to the rate of discount. In this problem, an item that originally costs $15 is being discounted by 10%. Typically, a store will discount an item by a percentВ of the original price. Problem:В In a video store, a DVD that sells for $15 is marked '10% off.' What is the discount? What is the sale price of the DVD?ДЄnalysis:В Stores often sell goods for a discounted price. What's 25% of $46, subtract that from $46 and you should get $34.50.Learn About Calculating Percent Increase And Decrease With The Following Examples And Interactive Exercises. Would have also felt off, but $46 feels right. Said you take 25% off and you got $34.50 that Say 'Well that sounds off.' Or if you got $4 and you Got $460 and you said taking 25% off you get to $34.50, you'd Whatever answer you have and put it back in and You take off one-fourth orДў5%, you're left with $34.50. Plus three is indeed 45 and we luckily have no remainder. What is that, four times? Four times five is 20. Multiplying the numeratorДЄnd the denominator by 100. I moved, essentially, both of the decimals to the right two places. So this is going to be the same thing as 3,450 divided by 75. So if I take 75 hundredthsДЄnd let me actually multiply both of these times 100. These two are equivalent, so I'll be left with my original price. And 75%, that's the same thing as 75 per 100 or 75 hundredths. Original price we just divide both sides by 75%. Writing this over and over again, is going to be equal to $34.50. Letters for variables, so they don't have to keep Something is going to be 75% of our original price, this is why people use One times the original price minus 25% of the original So can we solve for the original price? So one way to think about it, this is 100% of the original price or Of the original price is going to be equal to $34.50 because that the price with the discount. Price and then there's a 25% discount, so minus 25% Original price of the coat? Alright, well let's just write it out the same way we did last time. You're trying to calculate tax or you're buying something, This all of the time when you are shopping or These examples, they'reДЄctually quite useful because you will encounter What is the original price of the coat? So once again, pause this video and see if you can figure it out. So the original price of theД«racelet, before tax is $12. Well that's going to be equal to 12, 12 times six is 72. If I have 72 hundredths divided by six hundredths, And now we can just divideД«oth sides by six hundredths to solve for the original Rewrite everything as decimal, so we could write 0.72 is equal to 6% is the same thing as six per 100, which is the same thing as six hundredths, 0.06, six hundredths times p. So 72 cents is going to beД®qual to my sales tax rate, they also tell us that, that is 6%, is going to be equal toД¦% times my original price and that's what they're askingДЇor, the original price. And what do we know here? Well they tell us what our sales tax is. Rate, so that's going to be equal to the rate times Your sales tax would beД®qual to the sales tax rate, I'll just call that the Of the bracelet, before tax? So pause this video and see

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