0.04x=15 15÷0.04=x x=375

@samswift4921

2 күн бұрын

375 no paper, pen or calculator. O K. I do not own a calculator.

375. No calculator needed

My way of doing this in the day to day would be dividing 15 by 4 to get 1% of X then multiply that by 100. Most of my math solutions are situational. Doesn't work for everything but good enough for quick use. You could also just recognize that twenty-five "fours" equal 100 and multiply 15 x 25.

@rossadams3077

2 күн бұрын

@Vipre that's what I did too.

@faireplaymedia7622

Күн бұрын

Me too!!

X=375

Solved mostly in my head (used calculator for the final multiplication), my answer is 375. 1) ( 4 / 100 ) * x = 15 -- rewrite the percentage as a fraction. 2) (1 / 25 ) * x = 15 -- simplify the fraction 3) x = 15 * 25 -- multiply both sides by the denominator 4) x = 375. -- result.

@iishor

3 күн бұрын

100:4.multiply by 15 equal 375

Greetings. The answer is 375. The answer is determined as follows. 4X/100=15. That is 4X=1,500 and 4X/4=1,500/4, X=375.

I did it by using the percentage.... 4% is one twentyfifth, so X must be 25 x 15 (for mental arithmetic 250 + 125) which is 375....

Convert English to Math-ish: 4% is .04 "of" means multiply " a number" is the unknown, I'll call it "n" "is" means equal and 15 is, well, 15 So you have .04n = 15 Divide both sides by .04 and your answer is 375. It's easy when you write it down but my students hate to pick up a pencil and would rather just punch numbers into a calculator. They do poorly on tests when they won't write.

I got the rules of three simple on instant computing….x= 375…❤🎉thanks so much 😊

I solved this using proportions, the only math I have used consistently for 35 years. 4/100 = 15/x. 1500/4= 375.

4% can be written as 4/100. Simplify that and we get 1/25. So, 15 is 1 25th of x. So, we just need to multiply by 25 : 15 * 25 = 375. It is also possible to divide : 4% = 0.04. 15/0.04 = 375.

4x/100 = 15, x = 1500/4 = 375

So easy: 4/100 . x = 15 so 4x = 1500 and x = 1500/4 = 375

Mental math for me is to find 10% then multiply by 10 by shifting the decimal. 4%=15 8%=30 10%=37.5 100%=375

I actually just multiplied 15 by 25.... 25 x 4%=100%

60

You can avoid the division if you recognize that 4% is 1/25. 15 ×25 = oh, that's hard to do in my head 15 = 10 + 5 10×25= 250 5×25= 125 250 + 125 = 375

100/4=25, x=15*25, x=375

got it 375 15 / .04 thanks for the fun

Ans x=100×15/4=15*×25=375

15/4=3.75 so 3.75=1% 3.75 x 100= 375 =x 375 x 0.04 = 15

10p/4 = 25. 25x15= 375. X=375.

You have to know 4% is 0.04, the word “of” means multiply, and the word “is” means equals.

I figured there 25 4%s in 100. Then I multiplied 25 * 15 and got 375

375 no calculator needed. Too easy Mr. Math Man

375

Deu 375.

4 goes into 100 25 times, 25 x 15 = 375

4% 0f X = 15 then 100% = 15 * 25 = 375!!😀

4% of X is 15 1% of X is therefore 15/4 3.75 and X is 3.75 x 100 375

Ez 15÷4 then 3.75 x 100

(15÷4)100= 375

My hillbilly math… 4% of 100 is 4. Therefore 4% of 300 is 12. Therefore 4% 375 is 15 🤠

@bazkeen

2 күн бұрын

Nice thinking 👍🏻👍🏻

4 into 15 times 100 is 375

15 * 100 / 4 = 375

First: 100x15 = 1500 Then: 1500/4 = 375 Final answer: 4% of X is 15, where X=375

15×25=375

Dividi 15 por 4 e multipliquei por 100.

Why go through all of the convoluted intermediate steps to solve a simple equation. .04x=15 ; x=15/.04 =375.

If 4% is 15, then 1% is 15/4 = 3.75. × by 100 to remove the %. ... 375.

375 in my head in 20 seconds

Please correct the way you pronounce “problem “. It sounds unprofessional when you pronounce it as “proh lam”.

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