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estimate a 15% tip for each amount

1. 12.00 2. 5.50 3. 23.75 4.39.50 5. 94.84

2007-01-31 14:27:19 · 8 answers · asked by Anonymous in Education & Reference Homework Help

8 answers

i dont want to do these all for you, but here's how to do it:

multiply each amount by .15. that number is the amount of tip

if you want to get the total cost, you have to add the tip to the original number

2007-01-31 14:31:21 · answer #1 · answered by nate 2 · 1 1

MS C is on the right track, but he is being too precise for an estimate.
First round of your number to something easy like...
1. 12.00 ≈ 12
2. 5.5 ≈ 6
3. 23.75 ≈ 24
4. 39.50 ≈ 40
5. 94.84 ≈ 100
Then when you tip use MS C's rule, move the deci one place and add 1/2
1. 12 becomes 1.2 + .6 = 1.8
2. 6 becomes .6 + .3 = .9
3. 24 becomes 2.4 + 1.2 = 3.6
4. 40 becomes 4.0 + 2.0 = 6.0
5. 100 becomes 10.0 + 5.0 = 15.0
In the real world when you tip, it is nice to round them further to make a nice number, especially if the service was good.
1. 12 becomes 1.2 + .6 = 1.8 ~ $2
2. 6 becomes .6 + .3 = .9 ~ $1
3. 24 becomes 2.4 + 1.2 = 3.6 ~$4
4. 40 becomes 4.0 + 2.0 = 6.0 ~ $6
5. 100 becomes 10.0 + 5.0 = 15.0 ~$15
Remember a tip is a gift and your way of saying 'thank you' so don't insult the person you are tipping by counting pennies.
If you got rude or bad service, leaving one penny as a tip is much more of an insult than no tip at all.

2007-02-01 09:08:35 · answer #2 · answered by vincent 4 · 0 0

If you are asked to estimate, you are probably being taught how to "do math in your head, quickly" - on this, I'd use the method of...OK. 15%. To do it quickly...10% would be just moving the decimal point to the left one digit, then 5% more is half again, so add about half that number & bingo...estimated tip. Example:
94.84 10% move decimal left one space...
9.48 + half would be about 4.75 and that would be
13 + over a dollar, so I'd estimate about 14.25.

If you multiply it out, 94.84 x .15 = 14.23, so it's a pretty good estimate. I know learning to estimate seems stupid, but it will come in handy later. Learning to do 10%, then another multiple of 10 in your head really quick will be very useful- if you double it, you can do 20% in your head and so on. Good luck.

2007-01-31 22:38:24 · answer #3 · answered by MS C 2 · 0 0

Just multiply each number by .15, Einstein.

2007-01-31 22:30:37 · answer #4 · answered by Bestie 6 · 1 1

Tip Computing??? Hah! Buy an ettiquite guide. Or else a calculator if you can't do it in your head.

2007-01-31 22:37:38 · answer #5 · answered by team_bar1o 2 · 1 0

1. $1.80
2. $0.83
3. $3.56
4. $5.93
5. $14.23

2007-01-31 22:35:45 · answer #6 · answered by Iball 2 · 0 0

1. $1.80
2. $0.83
3. $3.56
4. $5.93
5. $14.23

2007-01-31 22:33:40 · answer #7 · answered by Love <3 3 · 0 0

It would be best served if you learned to do that yourself....

2007-01-31 22:36:58 · answer #8 · answered by Couple of Cents 5 · 2 0

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