# TIP MATH!

Explain how mental math can be used to estimate a 15% tip on a taxi ride that costs \$23.25.

PLZ HELP! BE VERY Descriptive on how you did this! I'm Sick Today So I've Barely Have Brains To Do This Today, So HELP!!!

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1. I take 10% and 20% of the number. For this ride, that would be about \$2.33 and 4.66.

Then I estimate what is about half way between those two numbers. It looks like about \$3.50 would be about 15%.

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Ms. Sue
2. 10% + 5% = 15%

2.3 + half of that
2.3 + 1.2
= 3.50

ps

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3. Still, Don't Get It......

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4. well Ms Sue used the fact that 15% is halfway between 10% and 20%

I used a tenth plus half of a tenth.

same difference :)

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5. K, Got THAT, But, How Does Mental Math Solve It?

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6. I NEED HELP AND FAST!!!!!!!!!!!!!!!! I have been stuck on this problem for almost an hour i really need help so plz helppppppp!!!!!!!!!!!!!

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7. ME 2222

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8. I'm here to cheat and idec if i get expelled give me all the answer b#%tc57s

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9. so I need to put what mrs sue said?

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10. HEY NO CHEATING!

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11. Thanks

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12. BUT DONT COPY IT WORD FOR WORD!

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13. mental math can be used because all you have to do is add 2.3 to half which is 1.2 so basically it is simple adding.

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14. no

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15. ESKKETTE is whole website is practically a cheat sheet

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16. great.
thnx

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17. um... that is not a website

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18. sorry my last response was to email a friend sorry

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19. I'm so tired and confused does no one have an answer

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20. What is the fricking answer. Pls helpppp ive been on this 4ever

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21. Mrs sue you are the mother of correct answers.
(Basically mrs.sue is right

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22. can someone just answer the question omg

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23. @Mrs. Sue has already answered the question adequately, as has @Damon. If you need further help, consider using a bit of pen and paper, maybe a calculator, your math book... this is going to get so many dislikes. Or it's going to get no likes OR dislikes because people want to dislike it, but see that I predicted this, somehow feel foolish in disliking it, and scroll past it. Now you're looking at this with a kind of confused yet astonished expression wondering how somebody can possibly waste their life to this extent. Now you're thinking about closing the website due to the fact that this is scarily accurate.

And now you're closing the website, unless, of course, there are answers to your questions right below this. Either that or a comment with terrible grammar or someone who used impeccable grammar for the sole purpose to spite my predictions. Also,

Steve is a crewmate.

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24. Thanks @Ms.Sue and @Damon

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25. thx

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26. What are yall even talkin bout????

Me over here like wth???..............
^
what the heck.............

then myeh brain in there be like (づ｡◕‿‿◕｡)づ inkr??!!!.......\

*******Meh like umm..... what is going on?????***********

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27. Sorry for that l am just super confused so my brain is still like MMMHHHHH........ ANIME......... know bout it and meh know bout the cute ness in life is this> ✨✨(づ｡◕‿‿◕｡)づ✨✨
its cute............ lol> evil.... hehehe............

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28. l am the anime grl for lifeeeeeeeeee!!!!!!!!!!!!!!!!!!! anyawys what type of math are yall talkin bout???

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29. My new name is Asuna Yuki (づ｡◕‿‿◕｡)づ

heheehheheehehehehehehhe...........>>>!!!!!!!!!!!!!!<<<<<<<<>>>>>>>>>

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30. there yall go l just like ALL OF YOU PEEPS!!!!! lol

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31. can yall do a fav for meh??.....

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32. Go to www.ehorses.com you will find the most AMAZING HORSES FOR SALE RIGHT NOW SOME OF THEM ARE NOT A WHOLE TUN OF MONEY!!!!!!!! Also no pressure peeps!!!! l am not here to pressure yall ok???

l am not that kind of person!

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33. it should pop up on this website cuz its on right now its the www.ehorse.com

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34. i <3 horses. I've jumped 2'3 and walk trot cantered. I've also galloped a lot on accident O-O

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35. hello! I know some people are having trouble with this question so here4s what I did:
(don't copy word for word)

I did 15% x 23.25 = 3.4875 because
part = percent x whole
In this case, the "part" is the tip, the percent is 15% or 0.15, and the whole is 23.25.
if you're talking about money like in this example you could(probably) round 3.4875 to \$3.48

also some help with other problems:
percent = part(is) ÷ whole(of) x 100
part(is) = percent x whole
whole(of) = part ÷ percent

the is whole and of are just to help you figure out which number is which thing in the equation!

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36. i need a mental math answer these all seem too confusing to be mental math

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37. where yall getting 10 from....im still confused..

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38. 3.49, 3.48, 3.50

It's one of these- Dont Judge me i have 1 brain cell remaining.

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39. AYOOOOO

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40. Oh wow... this comment section is.... inexplicably cringe. Yikes. I know we're all kids, but jeez.

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41. cringe CRINGE CRINGE REDDIT CRINGE GGRRRR

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42. Why yes.

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43. Well first the problem is I don't know how to solve this in mental math is what it is asking if we were talking about on a paper then I know how to do it I just need help explaining how you do it in mental math

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44. Hey siri how do i kill myself

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45. same bro i wanna kill

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46. Find 1%, 5%, and 10%.

1. Finding 1% means we just move the place value down by 2.

23.25 -> 0.2325

2. Finding 5% means we multiply 0.2325 by 5. But we're estimating the tip, so it doesn't have to be exact. Round 0.2325 to the nearest tenth, then multiply by 5.

0.2325 ~ 0.2
0.2 * 5 = 1

3. To estimate 10% of 23.25, we will multiply 5% by 2. So, 1 * 2.

1 * 2 = 2
2 ~ 10% of 23.25

4. We will add 10% and 5% to get 15%.

10% + 5% = 15%
2 + 1 = 3

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