Thank thank you thank you... my son and I are having AMI days and we were both baffled. Your video helped is TREMENDOUSLY 🎉🎊🤓🤗you are awesome... could you be our math tutor 🤗
when you said that if you didn’t like decimals or fractions you could just multiply the whole thing by 100, does that work for every problem and afterwards do you have to put the decimal back in the equations?
yes, you can always multiply by a number to clear fraction or decimals as long as you do it to both sides. you don't have to plug back in the decimal or fraction because by multiplying BOTH SIDES (that's important) you have dealt with them and don't have to ever think about them again
thanks for the video, it kinda helped but what if you not dealing with coins so you don't know the numbers in the second equation how would you find that out?
Is it a rule that you have to convert the decimal portion of these problems in order to solve them? Because I've tried without converting them and I get the wrong answer So you **HAVE** to convert them, right? (usually by multiplying the entire decimal portion/equation by 100). Not just if you want to?
How would you solve a similar question to this but only the total amount and number of coins is given, and you are asked to find the number of nickels, dimes and quarters.
When using systems of equations to solve, you can use the method of substitution or the method of elimination. In this example she used elimination. You use elimination to eliminate 1 variable to get the other. By multiplying the first equation by negative 10, she was able to get rid of the dimes so we could work with nickels.
Ah yes. Only one issue. I'm doing pennies, dimes, and quarters. The amount of dimes and pennies are the same, and the total amount of coins is 34. The total amount of change is $3.04.
To make the coefficients of one of the variables opposites of each other so they cancel out when you add them. You could also choose to multiply by -5.
These questions make me loose my shit when studying for the ASVAB and the questions about what number is three times this number plus five times another number i literally feel like bashing my head into the table because of math lol idk why i just can never master it
Here is the simple way to do : Let x represents nickel . .05x +.10(23-x)= $1.55 .05x + 2.3 - .10x = 1.55 -.05x +2.3 = 1.55 -.05x =-.75 X = -.75÷ -.05 X= 15 ( X= 15 nickels) 23 coins minus 15 nickels = 8 dimes. Let's check if all those coins add up to the amount of $1.55. .05 × 15= .75 cents. .10 × 8 =.8 cents . .75$ + .8$ =$1.55
Yes. As long as you multiply everything in the equation by a hundred then it will equal the equation you started with (but your answer will be multiplied by a hundred) for example 5+3=8 and 500+300=800
You lost me at multiplying the top equation with -10, then again in adding the two equations. Like I didn’t know we can add equations, or maybe I’ve forgotten. when do we do that and why
Of course the teacher would no what n is equal to because she will be teaching math of course. Why would you randomly go up to any person with your paper and say the answer???
I think you're wrong about the "Picky or not picky" part! The question doesn't says to solved! the question is asking how many dimes and nickles!! so after solving the equations. You are supposed to state! how many dimes and how many nickles in sentence.
thank you for teaching me in 7 minutes what my teacher couldn't in 2 weeks
Hey..you..stop reading the comments and pay attention to her!
😂😂 As a teacher, this got me! I needed a laugh today. Thank you!
We did it! I homeschool my son. This was the first to stump me. You got us through it. Thank you.
how's he doing?
Thanks , you just taught me what I didn't understand for a month in 9 minutes. 😃
Thank you for helping me teach my son what the teacher could not.
Oh I get it now my brain was on vacation, time to be an honor student again😁🙏🏾😊
This helped me more than you will ever know! 👏🏼 🤠 Thankee kindly from Houston, TX!
Wish you were my teacher
So helpful and clear! Please do more math videos.
You could maybe explained why you would multiply by a -10 so it made sense..otherwise great explanations thank you.
I think its because its two positives
She is using the elimination method. The coefficients in the top equation are 1. She's not showing the step of multiplying the bottom equation by 1.
She's eliminating D in the equation. If she wanted she could eliminate n by -5 as well. I know it's been 2 years but some others might need help.
@@JoeCnNd yes thank you lol
@@JoeCnNd Appreciate it
Would u pliz do more of these simultaneous equations to concretize my understanding of the whole Linear stuff?
My teacher made me watch this but it helped more than I thought
wondering why my professor didnt just explain it like this in the first place so much easier thanks !!!
nice teacher
Omg thank you so much!!! I feel like maybe I won’t fail my quiz tomorrow now!
Thank you so much I couldn’t figure this out and this was the like 100th video I watched to help me and I got it thank youuuu
A good lesson.
Likeable teacher
I wish you were my teacher because she barely taught us a thing in this subject and now I get it
Thank thank you thank you... my son and I are having AMI days and we were both baffled. Your video helped is TREMENDOUSLY 🎉🎊🤓🤗you are awesome... could you be our math tutor 🤗
Ur a great teacher thanks for this
take a shot for everytime she says ok
I'm just here to say you're a life saver... ❤
Good job! Where were in in 1975 when I was in Algebra 1?
That was awesome.
May god gives you heaven 🙏😭
omg thank u so much, i have a quiz tm and i was searching the whole internet on how to do the math. THANK U
Thank you for the video! I forgot how to solve this for my homework!
Wow
I wish you were my teacher😖 I learnt so much in 12 minutes than my teacher could ever teach me in a week
Your process for solving was excellent 😂
excellent visualization that you provided us
You're a great teacher.
when you said that if you didn’t like decimals or fractions you could just multiply the whole thing by 100, does that work for every problem and afterwards do you have to put the decimal back in the equations?
yes, you can always multiply by a number to clear fraction or decimals as long as you do it to both sides. you don't have to plug back in the decimal or fraction because by multiplying BOTH SIDES (that's important) you have dealt with them and don't have to ever think about them again
Thank you. U saved me I was having hard time understanding this now I can solve it
Outstanding work thank you
Thanks Ms. Milkosky!😊
I loved the
way you explained that
Thanks a lot. I at first didn’t see that you had to use decimals for the second equation.
thanks for the video, it kinda helped but what if you not dealing with coins so you don't know the numbers in the second equation how would you find that out?
OH MY GOD THANK YOU SO MUCH🙌🏽
thanks u so much. You helped me understand it better
Thank you so much your video helped me a lot
Thank you!
Why did you use -10 in the equation when solving for how many nickels you had?
Thanks this was very helpful
Is it a rule that you have to convert the decimal portion of these problems in order to solve them? Because I've tried without converting them and I get the wrong answer
So you **HAVE** to convert them, right? (usually by multiplying the entire decimal portion/equation by 100). Not just if you want to?
You helped so much you saved my life thank you
Where did you get the minus 10 is that suppose to be the dimes you subtracted from the nickels
vperkin69 no -10 is so that you can get rid of the positive 10
Great video, I just got lost when you multiplied by -10. I don’t know why or where the -10 came from.....
Hey me too. Pls help uss
I wana know too
OK, she chose negative 10 because she wanted to eliminate the variable D. She could have also chosen -5 for the n variable to eliminate that as well.
Thank you so much
How would you solve a similar question to this but only the total amount and number of coins is given, and you are asked to find the number of nickels, dimes and quarters.
How did you get -10 ?
Pamela Arroyo she got -10 bc she wants to eliminate something with -10
When using systems of equations to solve, you can use the method of substitution or the method of elimination. In this example she used elimination. You use elimination to eliminate 1 variable to get the other. By multiplying the first equation by negative 10, she was able to get rid of the dimes so we could work with nickels.
I love you like fr 😭
Thank you so much, helped a lot
Why n, d and 23 is multiplied by -10? Where did 10 come from?
thank you sooo much this was so helpful
thanks, a lot!
thank you so much, I am so glad to have finally found a good youtube math video!!
Ah yes. Only one issue. I'm doing pennies, dimes, and quarters. The amount of dimes and pennies are the same, and the total amount of coins is 34. The total amount of change is $3.04.
goo0d job saved me
Thank u so much
This taught me not to write down .5 for nickels. I cant believe i accidentally wrote down .5 when its .05.
Very helpful...THANK YOU!
4 quarters makes a dollar
this helped me so much omg
Thanks for making it so easy
Also how did that 23 turn into 230
she multiplied it by 10 😳
Thank you so much this really helped im subscribing!
this saved my ass
I'm confused on why you picked -10 to multiply by.
To make the coefficients of one of the variables opposites of each other so they cancel out when you add them. You could also choose to multiply by -5.
But the value of the nickels and dines are not given by the problem...
Nickels are .5
@@halimac2439 thats 50 cent.
thankkssss!!!
These questions make me loose my shit when studying for the ASVAB and the questions about what number is three times this number plus five times another number i literally feel like bashing my head into the table because of math lol idk why i just can never master it
Here is the simple way to do :
Let x represents nickel .
.05x +.10(23-x)= $1.55
.05x + 2.3 - .10x = 1.55
-.05x +2.3 = 1.55
-.05x =-.75
X = -.75÷ -.05
X= 15
( X= 15 nickels)
23 coins minus 15 nickels = 8 dimes.
Let's check if all those coins add up to the amount of $1.55.
.05 × 15= .75 cents.
.10 × 8 =.8 cents .
.75$ + .8$ =$1.55
i’m still confused LMFAOOOOO
this was so helpful
Or you could just divide the bottom equation by -5. ;)
Can u multiply the equation by 100 every time?
Yes. As long as you multiply everything in the equation by a hundred then it will equal the equation you started with (but your answer will be multiplied by a hundred) for example 5+3=8 and 500+300=800
thanks
I can teach with easy method 😊
Super helpful thanks (not sarcasm)
Math not equal to cake
Math equal to rubbish
You lost me at multiplying the top equation with -10, then again in adding the two equations. Like I didn’t know we can add equations, or maybe I’ve forgotten. when do we do that and why
Numbers can't jum at you. I thought people jump at numbers
te amo
Thanksssssssssssssssssssssssssssssssss
each time you say its easy I get excited and i assume you are gonna start solving, but no... Could you make quicker moving videos as well?
watch at 1.5X speed.
Smart and hott
Of course the teacher would no what n is equal to because she will be teaching math of course. Why would you randomly go up to any person with your paper and say the answer???
I think you're wrong about the "Picky or not picky" part! The question doesn't says to solved! the question is asking how many dimes and nickles!! so after solving the equations. You are supposed to state! how many dimes and how many nickles in sentence.
Tbh I'm still super confused.
Who needs useless brain for sell???
Who is here from Mr.Williams?
Teach me something my teacher cant
Ty for making me not understand it
Quiz tomorrow
😮😅If ?. Jejjfici😢😂
mylf bruh
WIll your marry me for 4,000,000 quarters..
7(3² - 5) - 7 + 3 [Many may be surprised to discover that the answer is 4! ]