Your method is far too long and involved too much unnecessary steps .My ten year old daughter was able to do this in at least 40 seconds .Students should be able to replicate things like this in everyday scenario . A simple algebraic equation does the trick.I see no need to convert to fractions or even include the Y in your last sum.
You took the hella long way lol. I got with the: is/of so 120/80=45/x so you cross multiply 120/x = 80x45 and then 120x/120 = 3600/120 so you divide 3600/120 and get 30. I hate fractions so much lol so I just find the is/of fairly easy and quick to use.
@TrishMcDarby 20% is equal to 1/5 of a number. If you divide 2000 by 5, you will get 400...so 1/5 of 2000 is 400. If you take that away, you have 1600.
Your method is far too long and involved too much unnecessary steps .My ten year old daughter was able to do this in at least 40 seconds .Students should be able to replicate things like this in everyday scenario . A simple algebraic equation does the trick.I see no need to convert to fractions or even include the Y in your last sum.
hkweli 6 days ago
Why make this so difficult ,this question would be too easy to appear on a 11+school exam in the UK.
1600=80%
X = 100%..cross multiply and it should take you about 30 seconds .X is the unknown.lol
hkweli 6 days ago
i got lost as soon as he opend his mouth lol but reading the comments i understood a little...
bbkingz21guNz 2 weeks ago
Im so confused on how to do the second part of the question :/
Billo0786 2 weeks ago
NEVER MIND I FIGURED IT OUT THNX
RICANXAY1 2 weeks ago
CAN U EXPLAIN HOW IS THE EASIEST WAY TO FIGURE OUT THE FRACTION OF THE PERCENT? 80% AND U REDUCED IT TO 6/5
RICANXAY1 2 weeks ago
ok HERE is a short version of this whole thing!
-- subtract the percent off from 100
100 - 20 = 80
-- divide the sale price by the answer
1600 divided by 80 = 20
-- multiply that answer by 100, and you have the original price
20 x 100 = 2,000
Victory! :3
TookItToMyGrave 1 month ago 4
@TookItToMyGrave : Really helpful thanks :)
Billo0786 2 weeks ago
You took the hella long way lol. I got with the: is/of so 120/80=45/x so you cross multiply 120/x = 80x45 and then 120x/120 = 3600/120 so you divide 3600/120 and get 30. I hate fractions so much lol so I just find the is/of fairly easy and quick to use.
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Sk8ierBoi00 3 months ago
Hey how come you switched the 4/5 to 5/4?..I don't get that part!!!!!
jasonleis 3 months ago
Got it...not enough caffeine this morning... :0)
TrishMcDarby 3 months ago
Can you explain how you started with an item that cost 2000 dollars take 20% off of it and get 1600???
TrishMcDarby 3 months ago
@TrishMcDarby 20% is equal to 1/5 of a number. If you divide 2000 by 5, you will get 400...so 1/5 of 2000 is 400. If you take that away, you have 1600.
mometrix 3 months ago
is it 45/3=15 then 15x2=30!!!!! is it right??? can you respond now?
yeahboy2464 4 months ago
@yeahboy2464
Yes this is right.
xX410chea 3 months ago
can you explain how did you get "y=30" in "y=2/3 45"??? pls im almost there at the finish line!!!
yeahboy2464 4 months ago
So easy divide by 5
cvsballah101 5 months ago
Thank you for posting this.. I always get stuck with these word problems.
RAWRAnnuh 5 months ago in playlist Review