For a complete lesson on the discount formula, go to http://www.yourteacher.com – 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students solve word problems using the “discount” formula, which states: original price x rate of discount = discount. Students also solve word problems using the “sale price” formula, which states: original price — discount = sale price. For example: A tennis racket marked at $110.50 is on sale at 20% off. What is the discount? What is the sale price? Students also solve word problems using the “rate of discount” formula, which is the same as the percent decrease formula: amount of change/ original number. For example: An old video game is marked down from $48 to $18. What is the rate of discount?
Duration : 0:3:8
July 23rd, 2010 at 3:22 am
WTF this is not …
WTF this is not discount formula, it should look something like: PV = FV / (1 + r)^Y
July 23rd, 2010 at 3:22 am
@TokenDocumentaries …
@TokenDocumentaries just tickle her yum-yum for a bit
July 23rd, 2010 at 3:22 am
@juan414100 I agree …
@juan414100 I agree. I want to put babies inside her
July 23rd, 2010 at 3:22 am
fricking I was …
fricking I was looking for the formula for the rate of discount like as in T-bills
July 23rd, 2010 at 3:22 am
@lopocddr X=13, Y= …
@lopocddr X=13, Y= -1.38
July 23rd, 2010 at 3:22 am
@juan414100 no…
@juan414100 no…
July 23rd, 2010 at 3:22 am
I know this might …
I know this might sound wired but I love how she talks! Her voice is perfect!
July 23rd, 2010 at 3:22 am
@4everPandaLover …
@4everPandaLover for TIPS do the same as the first step.. but for the SALE PRICE us ADDITION instead of SUBTRACTION! EASY… aGAIN!
July 23rd, 2010 at 3:22 am
@failmeister51 EASY …
@failmeister51 EASY! Multiply the REGULAR PRICE with the PERCENTAGE%…. the answer= DISCOUNT! Then, you subtract the REGULAR PRICE with the DISCOUNT (YOUR ANSWER FROM THE MULTIPLICATION) and the answer from that = the SALE PRICE! I used to have an F in math too.. but i raised to A+ in less then a month! HONOR ROLL 2 TRIMESTERS! XD
July 23rd, 2010 at 3:22 am
@Christy2792 only …
@Christy2792 only when shes teaching
July 23rd, 2010 at 3:22 am
@Spiritsontonight – …
@Spiritsontonight –Is she really that freaking serious all the time?
July 23rd, 2010 at 3:22 am
I bet thats the …
I bet thats the devils daughter….
July 23rd, 2010 at 3:22 am
3x+y=8
3x+y=8