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/sci/ - Science & Math

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Anonymous Tue Dec 11 22:36:59 2018 No.10208587 [Reply] [Original]

Maria's Pizza sells one 14-inch pizza or two 9-inch pizzas for $9.99. Determine which size gives more pizza.

I chose the 9-inch pizzas and it said I was wrong! >:(

what the fuck!?? in what world does this make sense?

i know i'm a brainlet but this is bullshit. Obviously 18 inches of pizza is more than 14 unless you're pulling some 'WELL TECHNICALLLYYYYYYYYY' shit. Fucking bullshit trick question. 2x9 is not less than 14.

>>	Anonymous Tue Dec 11 22:38:29 2018 No.10208594 >>10208587 In case you're not just pretending to be retarded... What's the area of a circle?

Anonymous Tue Dec 11 22:43:02 2018 No.10208608

>>10208594
look, i don't even know, but all that math shit aside, it's not tangible.
two nine inch pies of pizza is more pizza than a 14 inch pie of pizza.
no amount of pie=rsquared whatever it is bullshit will actually change the fucking physical size if you were to combine two nine inch pizzas and a 14.

if you could explain to me how it makes sense, i'll admit my fault and that im being retarded, because there's definitely something i am not getting here.

>>	Anonymous Tue Dec 11 22:44:53 2018 No.10208614 >>10208608 Please be joking

>>	Anonymous Tue Dec 11 22:47:48 2018 No.10208622 >>10208608 The amount of pizza you get to eat is the area of the pizza not the fucking diameter, you ultimate nigger. Really it’s the volume, but pizzas are flat

>>	Anonymous Tue Dec 11 22:47:48 2018 No.10208623 >>10208608 holy fuck you are retarded

>>	Anonymous Tue Dec 11 22:48:10 2018 No.10208624 File: 53 KB, 851x637, 1539993616356.jpg [View same] [iqdb] [saucenao] [google] Actually had to check I wan not on /g/

Anonymous Tue Dec 11 22:48:40 2018 No.10208626

>>10208608
Think about it this way: how many sausage chunks can you fit on those motherfuckers? The more area the pizzas have, the more of that meaty goodness you can fit on there. You want as much meat as possible, right? So find those areas so we can compare the meat.

>>	Anonymous Tue Dec 11 22:49:20 2018 No.10208628 >>10208608 81*2 = 162 14^2 = 196 Clearly the 14 is more pizza. Hope you aren't getting ripped off like this in stores. Actually, I don't give a fuck if you cant do 6th grade math.

Anonymous Tue Dec 11 22:50:14 2018 No.10208630

>>10208614
sadly i'm not. I'm good with linguistics, and writing, but not with math.

for reference I'm 23 years old in community college, it's my third year in, and i'm still taking Beginning Algebra, a high school class. That's what this is for, my online preparation for the final exam.

Once I get the formulas memorized, I can do the work itself rather quickly. but i fuck up using the wrong formula for certain things.

and some things just don't click with me for some reason, like this. I know Pi*Radius^2 is for the area of a circle, but despite that, I can't tangibly understand WHY 2 circles of one size that add up to bigger than another one would still be smaller. It just doesn't make sense to me (yet)

Anonymous Tue Dec 11 22:51:28 2018 No.10208634

>>10208622

I know you're right, but for some reason that just doesn't make sense to me.
You are eating the fucking diameter, if you ate the whole pie by yourself you'd be eating a slice and the slice across from it as well.

You'd only be eating the radius if you ate just a slice.

Anonymous Tue Dec 11 22:52:34 2018 No.10208640

>>10208626
I appreciate you trying to put it in a way easier for me to understand but that still doesn't make sense to me. If you have two 9 inch pizzas, you can cover 9 inches in sausage twice. If you have one 14 inch you can only cover 14 inches with sausage.

>>	Anonymous Tue Dec 11 22:53:56 2018 No.10208648 >>10208634 You’re making it over-complicated. Draw a one inch pizza on a piece of paper next to a two inch pizza. Notice that the two inch pizza has FOUR times more pizza than the one inch one, not just twice. That’s just how it works.

>>	Anonymous Tue Dec 11 22:56:03 2018 No.10208651 >>10208648 how does it have 4 times more??? its just twice as big

>>	Anonymous Tue Dec 11 22:56:52 2018 No.10208654 >>10208651 Draw them and look at them with your eyes.

>>	Anonymous Tue Dec 11 22:57:27 2018 No.10208655 >>10208654 it's just not clicking man i'm really frustrated

Anonymous Tue Dec 11 22:57:46 2018 No.10208656

>>10208651

Well it might make more sense to to look at a simpler shape, like a square.

Draw a square and draw a line up and down through the middle, and a line left and right through the middle.

You should have four small squares inside that large square, the small ones having Half the side length as the larger one.

The big square is clearly FOUR times as big as the small (Since there are four little squares inside the big one) but the side length is only TWICE as long.

>>	Anonymous Tue Dec 11 22:58:31 2018 No.10208658 >>10208655 Then try it with square pizzas. How many square pizzas with a 1 inch side can you fit into a square pizza with a 2 inch side? It’s the same with circles.

>>	Anonymous Tue Dec 11 22:58:49 2018 No.10208659 File: 55 KB, 960x720, The+area+of+a+circle+Use+π+=+3.14+to+find+the+area+of+the+following+circles_+2+cm.+10+m.+A+=+πr2..jpg [View same] [iqdb] [saucenao] [google] >>10208651 Nigga learn about circles. Pic related

>>	Anonymous Tue Dec 11 23:00:15 2018 No.10208662 >>10208656 >>10208658 ahhhhhh you know what, for some reason that made it a lot easier for me. I think i can see it now. thanks guys

Anonymous Tue Dec 11 23:00:29 2018 No.10208664

>>10208651
Grab a bunch of pennies and a big piece of paper. Draw a 6 inch by 6 inch square. Draw two 3 inch by 3 inch squares. See how many non-overlapping pennies you can put in these without going over the edge of the drawing. Now repeat the same thing with a circle of diameter 6 inches versus two circles of diameter 3 inches.

>>	Anonymous Tue Dec 11 23:01:17 2018 No.10208667 >>10208659 cheers

>>	Anonymous Tue Dec 11 23:03:29 2018 No.10208675 >>10208651 You understand that a square with side length 2 has four times the area of a square with side length of 1 right? It's similar to that.

>>	Anonymous Tue Dec 11 23:06:52 2018 No.10208686 >>10208664 that's brilliant, if i could find a ruler i can do this, but envisioning it definitely makes it a lot clearer thank you very much man

Anonymous Tue Dec 11 23:08:07 2018 No.10208689

>>10208622
>pizzas are flat
You're actually a fucking moron. If pizza was flat, we'd all've fallen off the crust long ago. Tomatoes are spherical, garlic is an oblate spheroid, isn't it obvious pizza is also spherical? The math is out, the science is in, get updated because your point of view is so last millenia, and no one takes you seriously, you illiterate.

>>	Anonymous Tue Dec 11 23:11:55 2018 No.10208696 >>10208689 I only eat thin crust pizzas. The spherical deep dish ones are disgusting

>>	Anonymous Tue Dec 11 23:14:18 2018 No.10208700 jesus man this thread is funny

Anonymous Tue Dec 11 23:22:14 2018 No.10208713

>>10208587
There's something that needs to be factored into this that isn't.
The portions of toppings used for each pizza and the width if the edge area clear of toppings.

Until you bring these into account there's no way to pick which is better just by their area or volume.

>>	Anonymous Tue Dec 11 23:26:45 2018 No.10208724 The fact that more individual pizzas inherently implies you can have a more varied choice of toppings makes the double 9'' better in terms of variety

>>	Anonymous Wed Dec 12 00:13:23 2018 No.10208808 Its like 153 square inches for a 14 and like 127 for two nines. How come none of you shit talkers can show OP how to figure that?

>>	Anonymous Wed Dec 12 00:21:00 2018 No.10208819 >>10208587 Doesn't understand how volume (or cross sectional area) works

>>	Anonymous Wed Dec 12 00:25:14 2018 No.10208826 >>10208630 Enjoy gaming your exam, probably for yet another time, then you can understand why people get paid money to do this stuff. If it's not tangible, go and cut some circles out of paper and play around with it to see

>>	Anonymous Wed Dec 12 00:27:52 2018 No.10208829 >>10208819 Neither do you

>>	Anonymous Wed Dec 12 00:27:59 2018 No.10208831 >>10208808 Because he said he knew the area formula but didn’t understand why it applies here, brainlet

>>	Anonymous Wed Dec 12 00:44:49 2018 No.10208874 >>10208831 He knew how to say pi R Squared. You can pick that up hearing others talk. I am the brainlet who gave this answer >>10208819 If you were smart enough, you could explain to OP how I got those numbers. I'm too dumb to put math in a post.

>>	Anonymous Wed Dec 12 00:54:28 2018 No.10208903 >>10208587 so 14" has 2 inches of crust so it is only 12 and 9 is only 8.5 1212=144 < 144.5=28.5*8.5

>>	Anonymous Wed Dec 12 01:03:43 2018 No.10208926 File: 875 KB, 1600x900, 90A8EAAA-FBD1-48B8-82E2-F01778DE6B60.png [View same] [iqdb] [saucenao] [google] >>10208903 >getting diameter confused with radius while attempting to bullshit

>>	Anonymous Wed Dec 12 02:00:12 2018 No.10209085 >>10208628 yeah but you get less crust that way I think the 15% reduction in pizza area is worth the extra crust

>>	Anonymous Wed Dec 12 02:09:08 2018 No.10209103 >>10208808 1/2 of 9 is 4.5. 4.5x4.5 equals.. times 3.14 equals about 63.5... times two nine inch pizzas equals 127 ish. 7*7 equals... times 3.14 equals 153

>>	Anonymous Wed Dec 12 02:11:04 2018 No.10209107 >>10208608 lmao

>>	Anonymous Wed Dec 12 07:10:00 2018 No.10209470 >>10209103 This

>>	Anonymous Wed Dec 12 07:14:20 2018 No.10209473 >>10208587 10/10 thread OP, you successfully trolled all of /sci/ congrats

>>	Anonymous Wed Dec 12 07:16:05 2018 No.10209476 >>10208630 >sadly i'm not. I'm good with linguistics, and writing, but not with math. cope

>>	Anonymous Wed Dec 12 07:17:40 2018 No.10209480 pi(9)^2 × 2 pi(14)^2 Remove the pi... 81 × 2 = 162 14^2 = 196

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