Question

Check my consumer math answers please! I will give medal to best answer.

Answer 1

Tip and Sales tax cause a restaurant bill to____.
a. increase
b. decrease
c. stay the same
d. be unaffordable

When estimating using money for a purchase, you should_____.
a. round up
b. round down
c. estimate up to the nearest dollar or half dollar
d. estimate down to the nearest dollar or half dollar

You purchase a piece of cake for $3.49. What would be a good estimation for just purchasing the cake?
a. 3.00
b. 3.50
c. 4.00
d. 3.75

Your total restaurant bill for food, drinks, and tip is $37.40. What is a good estimate cost for just the food and drinks?
a. 33.50
b. 37.00
c. 36.00
d. 34.00

Answer 2

My answers are:
1. A
2. C
3. B
4. D

Answer 3

I am pretty sure that
1. A
3. B
are correct.

But,
2. Shouldn't you round to the nearest cent?
4. How am I supposed to know what kind of tip to give?

Answer 4

2. The lesson I was taught says you're supposed to round up to the nearest half-dollar or dollar.
4. I'm confused about this one too. I got D from someone online, but they didn't explain how they got it.

Answer 5

Are you there?

Answer 6

2. If that is what the lesson says, than this is probably the correct answer.

4. I wouldn't say for sure, but I would assume that tip is at least not in coins. (Kind of too insulting, isn't it?)

Perhaps, you gave $4 for the tip.
And remained with $33.40 from which you come
up with estimate for food and drinks of $33.50.

Answer 7

So, I would choose A for #4, but I don't guarantee that if you choose that, then this would be correct.

Answer 8

I have no idea how to solve 4. They didn't teach this in the lesson. :/

But for all these questions, the sales tax and tips have been 10% every time, so it's probably 10% for this question too. Could you multiply this by .9 to get the original price?

Answer 9

So, if the tip is 10%, then the food & drinks is 90%.
Since the whole thing is 100%.

Then, yes, it would be correct to multiply the whole
price by 0.9 (or to take the 90% of the whole price),
to get the cost of food and drinks.

Answer 10

making sense?

Answer 11

Let me read the question again, I'm kinda confused

Answer 12

Oh okay I think I see what you mean. So assuming the tip is 10%, which it has been this whole lesson, the original price for the food and drinks was $33.66, which rounds up to $34.00, which could be the answer...

Answer 13

Actually, not quite.

If you estimate between 33 and 34, then you choose 34.
But, if you estimate between 33.50 and 34.00, then wouldn't 33.50 be closer?

So, I think that your original answer was correct, actually./

Answer 14

I mean, wouldn't 33.66 be closer to 33.50 rather than to 34.00?

Answer 15

Tip and Sales tax cause a restaurant bill to____.
a. increase
b. decrease
c. stay the same
d. be unaffordable

The answer would be increase, that is because a sale would make the bill increase.

Answer 16

@SolomonZelman Yes, 33.50 would be the closest, but according to number two, you're only supposed to round UP to the nearest dollar. So I'm thinking it's D...

Answer 17

Nope

Answer 18

The lesson says to round up to the nearest dollar or half-dollar.

Answer 19

or, at least that is what you wrote above.

Answer 20

Wait why did you say "Nope"? Was I wrong about something?

Answer 21

If you add 10% to a bill for the tip/tax, then it means you multiply the bill by 1.1.

Which means if 10% has already been added, like the last question, you'd divide that total price by 1.1.

Answer 22

@agent0smith Isn't multiplying it by .9 the same as dividing by 1.1? That's what we did earlier...

Answer 23

Wait, so you are adding 10% to the bill for the tip.
Not as I was previously told, that tip is 10%....

Answer 24

And no it is not the same

Answer 25

No it is not the same @dinorap1

Answer 26

1/1.1 = 10/11

Dividing by 1.1 is same as multiplying times 10/11.

Answer 27

0.9 is 9/10,

1.1 is 11/10,

there's no way the fractions can be the same in any multiplication or division.

Answer 28

What? Really? Well when you divide 37.4 by 1.1 you get exactly 34. So is D the answer still?

Answer 29

Honestly we don't know, because consumer math isn't a typical math class. We don't know what your class has been taught to use for tip or w/e.

Answer 30

Hmm. Well I guess all I can do is submit the answers and see if we're right or not...

Do you guys think the other three are right at least?

Answer 31

I think that you got all of them right at this point, but I also won't grant anything for sure.

Answer 32

If the tip is 10% of the bill, added on top of the whole (100%) cost, then #4 is D.

If the tip is 10% of the bill (so, food+drinks=90%, and tip=10%), then #4 is A.

Answer 33

I guess all I can do is submit them and see...

Answer 34

I got a 4/4. Thanks guys, I wish I could give more than one medal... :)

Answer 35

Good job :) Medals don't matter so much to 99's haha

Answer 36

I got over 13K of them.

Answer 37

Yeah I just noticed. Okay give them to me instead haha

Answer 38

Maybe it feels nice at the beginning, but then .... I rather feel beter when I am capable of putting really nice stuff in latex.

Answer 39

without lagging so much :)

Answer 40

Oh wow! That's insane! :O
You deserve them though you really helped me understand the question better :D

Answer 41

Not a problem. You welcome, and good luck with the class!

Answer 42

Thank you very much. Cya guys later! I'll fan both of you :)