Bob wants an equal number of pennies, nickels, dimes for $2.40, how many of each will he have?

How to solve an algebra money word problem.
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[@chuckandmax7313]

15 of each and I figured it out in my head in two tries without algebra

[@nelsonx5326]

Me too. But this was an easy one.

[@stuartyoung5728]

A penny, a nickel and a dime add up to 16¢, so if we divide that amount into 240¢, we get 15, the answer.

[@randyloomis2313]

Same

[@genesispuredeaf2390]

The exact same for me. Tried 20 = fail. Knew that 10 would not work, then went to 15 …boom!

[@noiizzjc]

Lol same.

[@susanm1109]

15 but I don’t know if there’s a better way to do it. I added 1+5+10 and determined that 16 would be the total if only one of each coin was used. Then I divided 240 by 16.

[@lpjcyngomiller5719]

The answer is 15.

[@ldanz1096]

Yup 15 dimes, nickels, and pennies

[@ItsVideos]

Bingo! Same here.

[@journeywithstu7199]

Just started guessing. Had to be in increments of 5 or 10. 10 each was to little, 20 each was too much, so 15.

[@RyguyAB]

Figure it out in cents. Total of 240 cents. Since you want to use the same number of each coin let N equal the number of each coin. But in order for the total number of cents using the same nunber of each of three different coin denominations to be the result of the equation we are building, it will need to be expressed as the sum of the cents represented by the three coin denominations multiplied by the number of each of those coins that is used So: (1+5+10)×N=240 16N=240 N=15 Therefore you need 15 pennies, 15 nickels, and 15 dimes to make $2.40. This is actually only solvable to a single result because the number of each coin is the same. If you had different amounts of the different coins then you would be left with an equation with more than one unknown.

[@KW-gb9cd]

I did the same thing without the decimal point; instead of $2.50, I was using 250 cents. For me, it made the whole thing a little bit easier.

[@bobcarn]

15? My reasoning is X would be the quantity and would be the same for pennies, nickels, and dimes. So the value of each group would be the value of an individual coin times how many (which is X). 1X + 5X + 10X = 240. 16X=240. X=240/16. X=15. ..... Yay!

[@Hugebear222]

I use the same equation . Did this stuff 55 yrs ago

[@dksaevs]

i did this in my head and got 15 of each coin, but i didn't use "math". the answer can only be some number that uses 5 pennies. i know 10 would be too small and 20 would be too big... that only left 15 but i did watch the lesson to see how to show my work

[@AlistairGale]

Pennies were UK currency, therefore the answer is 3 furlongs per metre

[@ChrisLewis-zs3ns]

15

[@jolla9963]

2 chuckers, and a long end...

[@AlistairGale]

@@jolla9963 please convert chukkas to Overs

[@user-ri6rn7ti5h]

1pennysx+5nicklex+10dimsx=1pennysx-5nicklesx-10dimsx= 2penysx+10nicklesx+20dimsx= 22x (2.40÷22x)=12x(x+3x-4)

[@AlistairGale]

@@user-ri6rn7ti5h thank God someone can do basic arithmetic, the empire is safe

[@jwac3io]

First, read the call of the question line. E.G. read the, "How many of each will he have," first. Try it. It's powerful.

[@jamesshade8845]

People can't do simple math. Just go to any store and have the power go out. Cashier can't proceed if they don't have a calculator.

[@dlkline27]

I juggled numbers around in my head until I got 15 for each coin but didn't have a clue how to write an equation for the problem. Good lesson. Thanks.

[@shealdedmon7027]

What Bob wants and what Bob gets are two different things!

[@WeirdoMePlease]

Professor John, you are the man my friend! Thankx a lot sir! 🙏🏿

[@deaneolson5990]

15 of each. Easy peasy.

[@jamesshade8845]

That's the problem with complicating simple math. Students can't use their brain and depends on calculator.

[@devonwilson5776]

Greetings. The answer is, each coin is, 15. Now, we will determine the value of each coin as follows. Let us assume that the different coins are represented by the letters X, Y, and Z for 1 cent, 5 cents, and 10 cents respectively. Now, we will add the values to get X+5Y+10Z=240. We are told that the different denominations must be equal. Therefore, X=Y=Z and X+5X+10X=240. That is 16X=240, and X=240/16 =15. Each coin numbers 15. 15×.01= $0.15 15×.05= 0.75 15×.10= 1.50 Total = $2.40

[@user-xp7jf3iz6m]

15 of each = $2.40 / (10+5+1)

[@davidhandyman7571]

I would suggest that it is simpler and less scary to work in cents, rather than dollars, especially as each coin is valued at less than a dollar. That way, you are not using decimals.

[@alastairgreen2077]

Comma after nickels.

[@Deacon_T]

45 seconds of thought = 15 each

[@stevedietrich8936]

x is the number of coins. 1x plus 5x plus 10x equals 240, 16x = 240, x=15

[@apmcd47]

Prior to watching this: A penny is 1, nickel is 5 and dime is 10 (I assume, I'm English). Add these three together to get 16. Divide this number into 240 gives you 15. So, 15 of each coin or 45 coins in all.

[@satsudha53]

Wonder site,all the best.

[@kevinhanz4894]

15 of each coin.

[@sujathasankar8931]

If number of pennies is x. Number of nickels would be 5x and number of fines would be 10x. x+5x+10x=240 16x=240 x=240/16=15 He needs 15 pennies, 15 nickels (75 pennies) and 10 dimes(150 pennies)

[@michaelshippsenior1443]

15. Dimes 15 nickels and 15 pennies

[@GeorgeWilliamPeters]

I figured 15 in my head pretty quick. I started with 16 initially.

[@nationaldemocracyendeavorm7443]

I got the answer, with same equation without decimals. Ie. 1x + 5x + 10x = 240pennies = 16x = 240 = x 240/16 = 15 pennies

[@r.s.marcus3043]

15 of each.

[@brianmorrison845]

15 done in my head 15 pen nic and dimes =240

[@coreybrown3417]

10 dimes 50 nickels 40 pennies

[@christinacarreno4585]

15 of each

[@QUARTERBAT]

Just add the value of a penny , nickel and dime and divide it into two dollars forty

[@chuckandmax7313]

I could never do this equation in my head

[@bobwonderpants]

15dimes 15 nickels 15 pennies

[@magnellysreyespupo5583]

Bob is broke 🤣🤣🤣🤣🤣🤣🤣

[@keithschipiour4684]

Well apparently Bob has not listened to the rolling stones. You can't always get what you want .Bob is only getting 2 dollars bills and 4 dimes.

[@sinclairlargin7260]

15 each

[@kennethwright870]

$2.40/(Penny + nickel + dime) = 15 of each

[@davidhandyman7571]

Here in Australia, we do not have pennies, nickels or dimes. Therefore, I assumed that a penny is 1 cent, a nickel is 5 cents, and a dime is 10 cents. That being the case, the number of each coin is 15. Let x be the number of coins, then, 1x plus 5x plus 10x = 16x. Therefore, 16x = 240 (cents). Therefore, x =15. To prove it, 15 pennies (15 cents) plus 15 nickels (75 cents) plus 15 dimes ($1.50) equals $2.40. I am writing this before John gives us a solution.

[@russelllomando8460]

got it - 2.40 / 16. thanks

[@Joanne-kw6lo]

First of all BOB probably has no idea how many pennies are in a nickel much less how to do this 😂

[@BansheeBunny]

.01X + .05X + .10X = 2.40

[@richardburnfin6951]

Bob's out of luck because he would have got 2dollar bills and 4 dimes then be told to get lost!

[@CV-uy1jc]

15 each= $2.40

[@davidwarr8600]

Pretty easy, 15.

[@michaelanjin1327]

15, 16 and 240 was easy

[@ItsAll19]

Just make X the number of sets of coins each set is .16 so X is 2.4 / .16

[@MrMousley]

So let's call a penny X .. a nickle 5X .. and a dime 10X and say X + 5X + 10X = 240 pennys 16X = 240 15 of each

[@tomtke7351]

P-pennies N-nickles D-dimes X-equal number of each coin so that X×P + X×N + X×D = $2.40 P = $0.01 N = $0.05 D = $0.10 yields X(0.01)+X(0.05)+X(0.10)= $2.40 X(0.16)=$2.40 X = 15 VERIFY 15(0.01)+15(0.05)+15(0.10)?= $2.40 0.15+0.75+1.50?=2.40 0.90+1.50==♥️$2.40✔️✔️

[@chuckzirkle801]

Why I had I had issues with algebra. Two tries in less than 5 minutes and the answer is 15. Could get the answer without the equation. Bottom line person. Served me well in business world.

[@shetalshah1191]

The answer is 15

[@magnellysreyespupo5583]

80 cents times 3 equals $2.40 yes no??

[@MathsMadeSimple101]

When you’re from the UK and can’t relate.

[@portionsredacted7743]

As in UK, 1 penny = 1 cent = 1/100th of the main monetary unit (one dollar ($) in USA, like one pound (£) in UK) One nickel, or 5¢, is 5 hundredths (5/100) of the main monetary unit One dime, or 10¢, is 10 hundredths (10/100) of the main monetary unit So, 0.01x [pennies] + 0.05x [nickels] + 0.10x [dimes] = $2.40 0.16x = 2.40 0.16x/0.16 = 2.40/0.16 [divide both sides by 0.16] x = 15 Thus, Bob needs 15 each of pennies, nickels & dimes to get $2.40

[@darkparker7500]

15.

[@bobstoutenburg171]

15..

[@stevekernodle9832]

Oops 15

[@garymPop]

15

[@bravewave2084]

15 of each 🎉yeaaà

[@anthonysegnini9074]

9

[@anthonysegnini9074]

My bad 6

[@moskee4621]

This was really hard to follow you because you get off of topic the whole time and it’s like I just want you to solve the problem so I can get this over with

[@jolla9963]

America doesn't have pennies, that is an Imperial Currency, the US has Cents. A Penny would be worth about 2 cents... and that throws the equation out of whack.

[@tracyschroeder9296]

Sir, what are you using to draw/write out these problems on?

[@larryharbolt]

15 of each

[@monakirk4844]

15 each

[@munchieosaurus3765]

15

[@user-ph3bs2ph1p]

15 of each

[@davidpedersen5595]

15 of each

[@gregorywebb9873]

15 of each

[@bobmchenry1527]

15 of each

[@kennethhubbard2027]

15

[@mollymam7153]

15

[@PedroVargas-ix1mm]

15

[@nancywright590]

15

[@ve3mzo]

15

[@wallykreiger845]

15

[@stevekernodle9832]

16

[@donwood9358]

15

[@RubyAtif]

Very lengthy clip

[@chuckcannaday1038]

15