Ann paid the cashier $5.65 with 25 coins of nickels and quarters. How many of ea. coin did she give

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TabletClass Math

Күн бұрын

Пікірлер: 90

@mattslupek7988 10 ай бұрын

22 quarters and three nickels. Did it in my head before watching the video.

@pi-sx3mb 10 ай бұрын

Same. 10 seconds, if even that.

@jald910 10 ай бұрын

Likewise

@Odessaterp 10 ай бұрын

Same

@stevenboese1480 10 ай бұрын

Me too I'm oooooold school cashier use the old cash registers that go kuching and had to know how to give change back kids have it easy nowadays.

@dave929 10 ай бұрын

Yep

@obozoclown1889 10 ай бұрын

I love your videos! I'm a 49 year old electrical engineer that's been out of school for a while and these videos are fun and keep my math skills sharp. Thank you for making these videos!!

@russelllomando8460 10 ай бұрын

got it by brute force calculations. had to be mostly quarters. 22 & 3. liked your work. thanks.

@gabriellechamberlain7228 10 ай бұрын

I am from new Zealand so once I had confirmed that a nickel is worth 5cents I solved the problem in my head very quickly.

@toughenupfluffy7294 10 ай бұрын

Possible Quarters: 1-22 (25¢ - $5.50). Possible Nickels: 108-3 ($5.40-15¢). Since the total number of coins is 25, it must be 22 quarters and 3 nickels. (22+3=25).

@dangranville9046 10 ай бұрын

One dollar 13 cents

@MargaretCutt-um8iq 10 ай бұрын

a lot more work than it needs to be

@LJLMETAL 10 ай бұрын

Pretty easy once you think about it. 22 Quarters which makes $5.50. That leaves 3 nickles left which makes $0.15. 5.50+0.15= $5.65

@angelhelp 10 ай бұрын

This is exactly the type of word problem that gave me nightmares decades ago. I’d have to literally play with actual coins and hope that the problem didn’t force me to try to solve something involving hundreds of coins. Set up equations to solve this? Not a prayer! Every teacher and every other person who looked at this and more or less instantly solved it (and others like it) somehow invented equations out of the air and never managed to convey to me just exactly what they were thinking at the time. The equations I could solve, but translating the words of the problem (any problem) into “mathese” was something no teacher was able to impart. At the time, I didn’t know what was confusing me so I couldn’t explain to the teachers just exactly what it was that I didn’t understand. Teachers get frustrated pretty fast when a student can only repeat, “I don’t get it.”

@scinusa 10 ай бұрын

I thought it was twenty-one quarters and four dimes.

@pattyoconnell1950s 10 ай бұрын

22 $0.25=$5.50 3. $0.05=$0.15

@StephenRayWesley 10 ай бұрын

Similar method

@JoeG2324 Ай бұрын

these problems are so much easier when you use two variables. one for nickels and one for quarters

@RhondaBrown-lp2kl 10 ай бұрын

22 quarters(25¢) & 3 nickels(5¢) loved the lil math quiz

@gabrielle1777 10 ай бұрын

22 quarters and three nickels

@feliciasuess9877 10 ай бұрын

22 quarters and 3 nickels. I did it in my head before i watched the whole video! Super easy

@jimwetzel1635 10 ай бұрын

22 quarters and 3 nickels sounds about right to me.

@armchairtin-kicker503 Ай бұрын

Solve using system of linear equations where "A" is the number of quarters and "B" is the number of nickels. .25A + .05B = 5.65 A + B = 25 100(.25A + .05B = 5.65) 25A + 5B = 565 -5(A + B = 25) -5A - 5B = -125 25A + 5B = 565 -5A - 5B = -125 20A = 440 [A = 22] (22) + B = 25 [B = 3] Therefore the answer is 22 quarters and 3 nickels.

@panlomito 10 ай бұрын

Q is the amount of quarters and N is the amount of nickels: 25c . Q + 5c . N = 565c First !!! simpify this equation with dividing by 5c: 5Q + N = 113 Q + N = 25 so N = 25 - Q (also could take Q = 25 - N but that is giving big numbers again) Substitute N with ( 25 - Q ) : 5Q + ( 25 - Q ) = 113 so 5Q + 25 - Q = 113 -> 4Q = 113 - 25 = 88 Resulting in Q = 88 / 4 = 22 quarters and N = 25 - 22 = 3 nickels Check: 25c . 22 + 5c . 3 = 550c + 15c = 565c and a very happy cashier with all that precious coins.

@ElizabethConnelly-w8j 10 ай бұрын

22 quarters & 3nickels

@scottgouker808hardwrkr 10 ай бұрын

22 quarters and 3 Nickels In my head less than a minute.

@danolson1467 10 ай бұрын

I don't think there is as much fear of algebra as you think, at least among the viewers of these videos.

@melissadawson3822 10 ай бұрын

22 quarters ,3 nickels

@ramen6959 10 ай бұрын

Sure made a mountain out of a mole hill for this one. Solved it mentally in 5 seconds 😅

@richardowens9061 10 ай бұрын

I solved this in my head by determining how many nickels would be equal to $5.65. With 20 nickels per dollar, we would have 100 nickels, plus the 13 nickels for the additional $0.65, for a total of 113 nickels. We know that there were only a total of 25 coins used to pay the $5.65 bill. So, 88 of the calculated 113 nickels would have to be substituted with quarters, which would be 22 quarters, leaving 3 nickels. Easy peezy, and no calculator or pen and paper required.

@MargaretCutt-um8iq 10 ай бұрын

i figured out how many quarters would be the highest number in the 5.65. then what was left would be nickels. i fail to see why they would teach things to be more complicated than they need to be.

@raymondfrye5017 10 ай бұрын

New Zealand?...Eh?😂 I thought it was all pence and shilling.

@marynelson1408 10 ай бұрын

12 quarterback 13 nickels.

@maelsiemoleno8452 10 ай бұрын

3 nickels and 22 quarters.

@Ayelmar 10 ай бұрын

At the title card, done in my head (and on my fingers), the answer is 22 quarters, 3 nickels.

@eddiesanders3041 4 ай бұрын

After arriving at the answer via some brute force (try this and try that) guesswork, I re-approached with some system math: x(.25) + y(.05) = 5.65 and x + y = 25. Same result. Smiling

@anthonyvaldez6962 10 ай бұрын

I just happened to be right by chance

@RandallSullivan-i6i 10 ай бұрын

Simple25 quarters and 3 nickels.

@Beliar275 10 ай бұрын

Rather unfair to write a question that dont provide the necessary info .. I get that a quarter is a "quarter dollar" so 25c - but nickels ? no clue. Cant you write coin values in their actual cent value? Back to the question .. 25 quarters would give $6.25 - so a few less - than $5.65 from the question will yield 22 quarters first. and the remainder of 15 cents is divisible by 3 from 25 - 22 ..so 22 quarters and 3 5c "nickels" though that cent value was not provided

@Poult100 10 ай бұрын

I wasn't sure either but, you know what? I looked it up! Google is your friend!

@Beliar275 10 ай бұрын

@@Poult100 coincidentally I looked that up, but still I hate questions that dont provide the needed data

@Poult100 10 ай бұрын

@@Beliar275 I can see where you're coming from but real life is the same. You pretty much always have to look for bits of info from here-and-there to be able to make sense of any real-world questions. If you hate doing that so much that you don't bother, you'll end up in the dark compared to people who do the extra leg-work. It's not hard, irritating at times, maybe but, you often end up learning a lot more than you expected 8f you make the small effort. Maybe, at the moment, you're just too busy with other stuff, to get involved in these little brain exercises.

@anthonyvaldez6962 10 ай бұрын

Five cents

@loissanders5939 10 ай бұрын

22 quarters 3 nickeles

@larrywiener6327 10 ай бұрын

I am going to use this problem to introduce systems of linear equations.I will make one equation involving how many coins and another. How much it's worth and then solving the system. I think it's a good clear first word problem in the area of systems of linear equations.

@avawarren4575 10 ай бұрын

20 quarters 13 nickel

@maribelrodriguez5974 10 ай бұрын

22 $0.25 + 3 $0.05

@thomassouza6858 10 ай бұрын

I hope that Gen Z had the answer before they finished reading the problem or 4 seconds...if not they need to return to grade school! That's how long it took for my 3rd grade grandson to solve the problem...

@Nick-r3j2t 10 ай бұрын

3 nicks 22 quart

@claudettemcallister7225 10 ай бұрын

Why use a calculator. That is a crutch. I also solved this in my head.

@92Begbie 10 ай бұрын

yes like wise 22 and 3 nickels

@craigsaunders7037 6 ай бұрын

If you're from Oz and think a nickel is worth 10 cents, you get 21 quatres and 4 nickels. You also think that all these answers of 22 and 3 are by idiots, until you read some more comments and learn a nickel is 5 cents. LOL

@StephenRayWesley 10 ай бұрын

Quartier=4:50 Nickels=1:15

@aryusure1943 10 ай бұрын

Nope! You have more than 25 coins here. ;) I almost made the same mistake. :(

@anthonyvaldez6962 10 ай бұрын

😅 you have a great way of getting It

@aryusure1943 10 ай бұрын

Well, I cheated on this one. I went for the common sense approach and found the solution without the help of algebra. ;) But I watched the whole thing because I need to practice my algebra. ;)

@Lifeslessons81 10 ай бұрын

22 quarters 3 nickels

@StephenRayWesley 10 ай бұрын

Quarter=4:50Nickels1:15

@BarbaraSmith-up1gm 10 ай бұрын

27quarter&13nickle

@biffjones2601 10 ай бұрын

Whats a nickel and whats a quarter? If you dont internationalize your questions then - bye bye.

@mimimiraj7351 10 ай бұрын

Oh have fun with us and convert so we can learn

@joehaas3730 10 ай бұрын

Yeah me too

@joetandingan6328 10 ай бұрын

You have a very long introduction.

@Arne53 10 ай бұрын

To long

@Poult100 10 ай бұрын

Teaching styles vary hugely. This gentle style is intended to make it more approachable for people who are scared of math. You can put a finger on your phone screen to play at x2 speed if that helps.