9% of (2x + 1) is 50, what is x = ? Easy to solve if you know BASIC Algebra!
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- Опубликовано: 15 июн 2024
- How to solve a percent problem using an algebra equation. Learn more math at TCMathAcademy.com/.
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At 7:00 remember that the word "of" means "times", just as we must remember that "is" means "equals"
277.27
277.278
4991/18 . leave as a fraction
554.5 / 2 is my answer "in just one second". Thanks for the answer in just one minute. This site is improving. Thanks!
X = (50/0.09 - 1) / 2
got it 277.27 easy just divide by .09 and solve thanks for the fun.
I know I have forgotten most of my algebra and maybe I am doing this wrong, but couldn't we solve this equation differently?
I would just write it like this:
0.09(2x +1) = 50
2x + 1 = 50/0.09
2x = 555,55 -1
x = 554,55/2
x = 277,27
I took the approach of dividing both sides by 0.09. I then subtracted 1 from both sides to get 2x = 554.5555556. Then, I divided both sides by two to get x = 277.277778.
Awh thanks man
277.3
277.27…..
He makes a simple mathematical problem a rocket science.I am sure all those who remained his students must be all confused.
50 x 100 - 9 = 4991.
4991 ÷ 18 = 277.277
Leon Joseph
Sri Lanka
Actually, proper rounding would be 277.28
The problem said is 50 not 50.0004. Why round, nothing says you need to round.
@@markmauldin1327The guy in the video elects to round the answer to 2 decimal places, but his rounding is incorrect. I think the person you replied to was just pointing out that error.
Whether he should be rounding at all is a separate question.
If you want it really proper then you would choose 277 5/18
@@panlomito While true, only a limited number of fractions can be expressed properly on a computer. "5/18" is not properly expressed as a fraction; ½ is.
@@laurendoe1685/18 is fine.
The exact way to express the answer to the question in this video is 4991/18 if you're writing inline.
To express the exact answer in decimal form you need to be writing on a system that includes the ability to indicate recurring decimals with dots or a vinculum above the recurring digit(s), which is a bit beyond what's possible in a RUclips comment.
Why distribute? That seems harder. Why not divide 50/.09 as the first step?
It can be done in 4 FLOPS or 3 FLOPS and you get the same answer.
Answer x= 277.278
X=277 dont ask Y. Be glad I helped you find your X. Trust me, you don’t want to know where they were. I’m pretty sure I know why they’re your X! 😂😂😂😂
Math humor 😂
277.28
Yes that is what i got.
x = ((5000/9)-1)/2
Is it 26.75
X=247
277.6666..
At 3:40: OR…What is 10% of 120? 12! What is 7 x 12? 84! No calculator, no algebra, just 3rd grade math.
X= 277.277777....8
277.27777repeating
There's a typo in the question on the chalkboard - it should say "9% of" as it does in the video description.
Put the question on the chalk board into WolframAlpha and it says there's no solution, because it treats the % as the modulo operator.
But let's assume the question in the description is correct. Representing that mathematically we have
9
------ × (2x + 1) = 50
100
which solves as
9 × (2x + 1) = 5000
2x + 1 = 5000/9
2x = 5000/9 - 1 = 5000/9 - 9/9 = 4991/9
x = 4991/18
“Algeberric???” What kind of a math teacher doesn’t know that the word is “algebraic?”
I've often wondered why he does't pronounce "algebraic" correctly. Maybe a form of dyslexia? (which I would think makes this subject even more difficult to master) 🤷♀ ✌💙
This is 50% of the correct pronunciation
All your exclamation make is too complicated
277.2777777