12 dimes and 4 quarters. In my head math on this one.
@jald9106 ай бұрын
Me too
@jimfarrar49256 ай бұрын
Also
@MrPeterprinciple6 ай бұрын
Me four. I looked at the 4 possible answers and saw 12. Well 12 dimes equals $1.20 and 4 quarters is $1.00 which equals $2.20. No math needed on this one.
@lamper26 ай бұрын
He explains at the end WHY he goes slowly. watch that part. it's all about learning concepts and logic NOT just getting the answer to any problem.
@MrPeterprinciple6 ай бұрын
@@lamper2 I know. I simply agreed with those who acknowledged they did it their head. I have 2 degrees in science which included studying advance algebra and calculus. Thus, the LOGIC doesn't mean much to me. However, I have watched many of his videos which I enjoyed and think he's doing a great job helping people people who don't have a similar background with me.
@Aereaux6 ай бұрын
As much a logic question as well as a math problem. The number of quarters has to be multiples of 2 so you have a "zero" as the last digit. 2=.50 4=1.00 ect. Given that the total cannot exceed 2.20 then there will be 4 quarters = 1.00 and 3 x 4 = 12 dimes which equals 1.20 for a total of 2.20
@pilgrimpeace77636 ай бұрын
I am in Australia. My first problem was….what’s a dime and a quarter?🤣
@Kleermaker100028 күн бұрын
It gives more algebraic fun to take the X for the dimes. Then you finally get: 18 1/3 X = 220 => X = 220 : 55 x 3 = 12 (dimes) and thus 12 : 3 = 4 quarters (12 x 10 + 4 x 25 = 220 cents = 2,2 dollars).
@scotthunt707715 күн бұрын
I love the way that you teach !!! Very good explanations. Thank you for work !
@russelllomando84606 ай бұрын
got it in 10 seconds 12 dimes .25 + .30 (1 qtr + 3 dimes) = .55 2.20/.55 = 4 sets 4 qtrs & 12 dimes. thanks for the fun.
@jimfarrar49256 ай бұрын
Why so hard..2.20= 22 dimes 8 quarters is 2.00 + 2 dimes =2.20 take away 4 quarters add 10 dimes 12 dimes
@terryjohinke80656 ай бұрын
Even Though I'm Australian. A dime is 10c and a quater is 25c. So 4x25c=$100. 12 dimes =$1.20 . - 12 dimes is the answer. You don't need algebra for this- i got it right. ( Aussie ex Maths feacher).
@JohnStyles-to1bg6 ай бұрын
1 quarter plus 3 dimes = 55cents, $2.20 divided by 55 = 4 units x 3 is 12 quarters
@tripnick5556 ай бұрын
Yeah, exactly how I thought of it. For every quarter you have 3 dimes, so 55¢ and do the simple math as you said. It took about 3 seconds. I can't understand why some of these problems are so overcomplicated.
@gloriahuffman66125 ай бұрын
Oops! You meant "12 dimes" at the end ($1.20), not "12 quarters" ($3.00).
@mikeeiben34306 ай бұрын
Do you have any videos about mixing 3 liquid ingredients by percentage?
@Ayelmar6 ай бұрын
At the title card, my answer is 4 quarters, 12 dimes. Q = # of quarters 3Q = # of dimes .25Q + .1(3Q) = 2.2 (state the problem in terms of Q) .25Q +.3Q = 2.2 (distribute the .1) .55Q = 2.2 (combine the quarters and dimes) Q = 2.2 / .55 = 4 (4 quarters) 3Q = 12 (12 dimes)
@Ayelmar6 ай бұрын
(And I didn't even notice it was multiple - guess.... just went to calculating)
@panlomito6 ай бұрын
Love algebra: D = number of dimes (that we are looking for) and Q = number of quarters so the equations are (1) D . 10 cents + Q . 25 cents = 220 cents and (2) D = 3Q (1+2) ( 3Q ) . 10 + 25Q = 55Q = 220 so Q = 4 and D = 3Q = 12 so answer D. Also possible (1) and (3) Q = D/3 (1+3) 10D + 25D/3 = 30D/3 + 25D/3 = 55D/3 = 220 so D = 3 . 220 /55 = 3 . 4 = 12 Also... stupid multiple choice questions that rule out several answer by itself... Number of Dimes is 3 times number of Quarters, so the answer must be divisible by 3 so only answer C and D are possible. If D=6 (answer C) then Q=2 resulting in 6x10 + 2x25 = 60 + 50 = 110 cents. Not only this answer is wrong obviously but also you can see that doubling the C-answer gives D=12.
@danielwebb98896 ай бұрын
did problem in my head in 5 seconds...
@richardhole84295 ай бұрын
I used brute force. The number of dimes must be a multiple of 3. Let's try 9 dimes, 3 quarters. 90+75= $1.60. Try 12 dimes, 4 quarters 120 + 100= $2.20 QED
@pinballinc17526 ай бұрын
Solved it right away, I simply asked Ed.
@gruenpunkt6 ай бұрын
12 dimes, 4 quarters. Answer is D.
@seibertmccormick1844 ай бұрын
For every quarter, there are 3 dimes. Add them together, and they are 55 cents. 55 cents is 1/4 of $2.20. So, that would be 4 quarters and 12 dimes to make $2.20.
@jebbiekanfer88436 ай бұрын
I have a slide rule but forgot how to use it.
@richardhole84296 ай бұрын
What a shame. I wish you better luck with toilet paper!
@gloriahuffman66125 ай бұрын
😂
@jebbiekanfer88435 ай бұрын
Lol, I actually have three slide rules, why I don’t know. I used them in high school 45 years ago. We were required in AP algebra and trig. No calculators, my teacher was an old school teacher and an early end of the earth prepper. I can remember how to do sq. roots but that’s about it. I figure they will be handy in a Zombie Apocalypse.
@rl44246 ай бұрын
Thank you 😊
@candyturn4865 ай бұрын
Is d 4 quarters makes a dollar 10 dimes makes the other dollar so that makes 2.00 add the 2 dimes which makes 20 cents so that’s how you get the 12 dimes Letter (d)
@aryusure19436 ай бұрын
That's the type of problem for which multiple choices are perfect. ;) Easy!
@theresaknipp65646 ай бұрын
12
@schnauzerloversmom6 ай бұрын
Did it in my head.
@dwaipayandattaroy98016 ай бұрын
X + 3X = 2.20 X = 0.55 .55 + 1.65 = 2.20 4 quarter = 10 dimes , 3* x = 12 , cause 3 times the other, 4×3 = 12 , but 2.20÷0.55 = 4 didnt strike , its 12 dimes ,
@mannyguerreiro31036 ай бұрын
I did it by head,old fashioned way,twelve dimes and four quarters.i like see algebra equation?
@soundtreks6 ай бұрын
Yup I used the answer and worked backwards.
@richardhole84296 ай бұрын
My first guess, 6. 6 dimes 60centd, 2 quarters 50 cents. Gotta have more dimes than 6. Second guess 12 dimes 120 cents, 12/3=4 quarters 100 cents. Bingo. 220 cents. Cents only to avoid decimals
@Joan-COYI6 ай бұрын
12 but I used the probable answers to work it out.
@macy66766 ай бұрын
The answer is D
@saiedahmed52896 ай бұрын
Great
@joann42126 ай бұрын
D12
@josephlaura73876 ай бұрын
d) 12
@abdukadirnur61106 ай бұрын
12dimes using the ratio. Of 3:2.5
@frankiebyrd83615 ай бұрын
12 dimes and 4 quarters
@Baby115556 ай бұрын
I do my head it's simple 2.40 cents in in dimes so it's 24 times so you said 3x as many so that means 75 cents in quarters so that means out of your answers is 2,5,6,12
@Baby115556 ай бұрын
So common sense says 12 dimes
@Baby115556 ай бұрын
I don't need to solve it in solution I can do it in my head it took me a sec to read it😊
@gloriahuffman66125 ай бұрын
You aren't making any sense. Did you really mean $2.40?
@laurathompson23615 ай бұрын
12 dimes (4 quarters)
@davidmurphy5636 ай бұрын
None. They're mine. Thanks Ed.
@henryroldan20516 ай бұрын
D.
@Sailor376also6 ай бұрын
He has 3 quarters 9 dimes and 11 nickles. If you focus on ONLY dimes and quarters 4 quarters and 12 dimes
@gloriahuffman66125 ай бұрын
The math problem excludes nickels and pennies.
@Sailor376also5 ай бұрын
@@gloriahuffman6612 Oh, darn ! What fun is that? Gloria, are you any good in a canoe? Need a bowman. (Bow woman)
@shanehudgins41425 ай бұрын
The answer is 12 times 4 quaters
@gloriahuffman66125 ай бұрын
12 dimes (times = a typo).
@brandychandler40115 ай бұрын
It took me all of àbout 45 seconds to answer this. And I didn't use a calculator or pen and paper! I mean it's basic math
@handsometj37395 ай бұрын
12 dimes 4 quarters
@mrsawyer1866 ай бұрын
D
@ajabkhan93206 ай бұрын
Ajab khan khattak.Sir, you are roaming around dimes & quarters.The world has changed. Economists are worried about US Dollar in the wake of BRICS coining a new currency.
@gloriahuffman66125 ай бұрын
True, but that's irrelevant to the math problem. Quarters & dimes won't suddenly disappear from old financial records even if they were to physically disappear from circulation. 😊
@lornapiper65376 ай бұрын
I immediately decided the answer had to end in zero i.e. $1.00 which is 4 x .25, leaving $1.20 ÷ by .10 =12 dimes.😢
@gloriahuffman66125 ай бұрын
It's the total money value of the quarters that needs to end in zero, not the "answer," which is 12. That way, the money value of the dimes will end in zero so that the number of dimes will be a whole number with no fraction left over.
@gloriahuffman66125 ай бұрын
You knew what you meant even though "answer" wasn't the right word.
@kennethjewell72895 ай бұрын
12dimes 4quarters
@user-ri6rn7ti5h6 ай бұрын
d12
@ohsilveronewithattitude68195 ай бұрын
12 dimes.
@paulettecrowder17435 ай бұрын
12 dime
@shannaanders61495 ай бұрын
12 dimes
@kk6aw6 ай бұрын
4
@gloriahuffman66125 ай бұрын
4 what?
@Baby115556 ай бұрын
12 common sense
@user-ri6rn7ti5h6 ай бұрын
8 quarters two dimes
@gloriahuffman66125 ай бұрын
You forgot the requirement that there be 3 times as many dimes as quarters. You have 4 times as many quarters as dimes.
@user-go1bu9ko9e5 ай бұрын
Ed why do math books look so sad.answer.Because the Book is full of problem's.
@user-cn3zo9vi5h6 ай бұрын
Fun
@mohammedsafi54796 ай бұрын
your way of teaching is dull but not bad
@gloriahuffman66125 ай бұрын
Dull? Overly complex, but he intentionally used algebra on a simple problem in order to teach how to apply algebra to this kind of problem. So take your shortcuts, then go back & use algebra to get the same answer.
@Baby115556 ай бұрын
Okay check this out bro you do it your way I do it my way I don't need to stop it by solution because I'm f****** smart okay so obviously you're one of my grandkids I didn't go to school so suck it up