Posts Tagged ‘mathspig blog’

h1

Now You See It. Now You don’t 2

June 25, 2013

Slot machine maths:

a lose lose date with the Pokies

slot machine reels

According to Tom Vanderbilt in The Guardian ( Slot machines: a lose lose situation, 8 JUN 2013)

Once seen as a harmless diversion, hi-tech slot machines now bring in more money than casinos – and their players become addicted three times faster than other gamblers.

 Here’s how the math works:

slot machine 2

In Australia pokie machines must return between

85%

and

90%

of money gambled.

But here is the catch. If you start out with $300 that means, surely, you’ll go home with$255 in your pocket less some for the big payouts.

WRONG! WRONG! WRONG!

According to ex-gambler Tom Cummings you’ll probably go home with

NOTHING!

In his article, Poker machine maths, (ABC, The Drum, 27 MAY 2011) it is not unusual for someone to start with $300 but put $3,000 into the  machine over 4 – 5 hours. 

Here’s the sting. According to the poker machine, $3,000 was gambled, and $300  was kept (by the slot machine). That means that the machine paid out $2,700… which is the 90 per cent return.

That’s one pension cheque gone for the week.

Warren Buffett has called

gambling in general a 

“tax on stupidity”

pickpocket

or a way of fleecing those who don’t do the maths.

h1

500,000 Hog Hits

April 27, 2013

Mathspig is sooooooo excited

about reaching:

5 etc hits

To celebrate 500,000 or 5×105 hog hits

 and to continue showing mathspiggies everywhere

that maths is fun

and relevant to all

Mathspig presents

The MATHEMATICAL

CABINET OF

500,000

CURIOSITIES!!!

………………………………………

1

………………………………………………………

If you took a sample of

500,000 US teens

how many DO YOU THINK fall

asleep at school

at least once a week?

asleep

You will find amazing US teen stas here:

28% report falling asleep once a week

 500,000 x 28/100

= 140,000

Snoring to the left of you. Snoring to the right of you. You are not alone.

……………………………….

…………………………………..

.
happy-2nd-birthday
.

.

.

.

.

.

.

.

What volume of coke is there in 500,000 cans?

coke shower

Coke can vol = 355 ml = 12 fl oz

500,000 x 355 = 177,500,000 ml

= 177, 500 l = 177.5 m3

……………………………………………

An average bath uses 150 litres water per bath.

How many bathtubs would 500,000 cans of coke fill?

177,500/150

= 1,183 baths in coke!!!

Hey mathpiggies, wanna bubble bath? You’d be tickled pink.

……………………………..

………………………………………

3

…………………………………………

…………………………………………

In a crowd of 500,000 how many people

would have their birthday

on the same day as yours?

bd cake

There are 365 days in the year so the probability of anyone having their birthday on the same day as you (ignoring leap years) is:

1 in 365 or 1/365.

 

In a crowd of 500,000 the number of people who have a birthday on the same day as you is most likely:

500,000 x 1/365 = 1,370

That’s a lot of birthday cake!!

………………………………………………

………………………………………………..

4   How heavy is $500,000 dollars?

 money bag

Australia:

$ Aus

Wt Aus $1 coin = 9.0 g

If the bank gave a bank robber $500,000 in $1 coins it would weigh:

500,000 x 9.0 = 4,500,000 g

= 4,500 kg = 4.5 tonne

………………………………………………

………………………………………………..

UK:

UK [pound coin

.

Wt UK £1 coin = 9.5 g

500,000 x 9.5 = 4,750,000 g

= 4,750 kg = 4.75 tonne

…………………………………………………..

…………………………………………….

USA:

$ usa

Wt US $1 coin = 8.1 g

500,000 x 8.1 = 4,050,000 g

= 4,050 kg = 4.05 tonne

You will find all you need to know about the size and weight of US coins and notes here.

$500,000 in $1 notes would only weigh

11 lb or 5 kg.

……………………………………………….

So, um, bank robbers do the maths!!!!!!!!!!!!!!!!!!

………………………………………………

………………………………………………..

5

How far would you walk in 500,000 steps?

We’ll assume you take a big step of 1m.

step

So 500,000 m = 500 km.

A comfortable walking rate is 5 km/hr.

How long would it take you to walk 500 km without a break?

500/5 = 100 hrs.

………………………………………………

………………………………………………..

6 049_tns6 bugatti-veyron-super-sports-480

The Bugatti Veyron Super Sport  hits a maximum speed of 267 mph (429 km/h).

How long would it take the Bugatti travelling at top speed – not including refueling time – to clock up 500,000 km?

500,000 /429  = 1165.5 hr

= 48.5 days

The speed of an average sized commercial passenger plane ≈ 500 mph 0r 800 kph or

≈ twice the speed of the Bugatti.

So it would take a passenger plane approx 24 days to travel 500,000 km.

………………………………………………

………………………………………………..

7 A&E

How long would it take you to count to 500,000?

kid counting

Assuming you count at the rate of 1 per second the time it would take is 500,000 seconds.

500,000/ 60 = 8333 mins = 833/60 hrs

= 13.88 hrs or 13 hrs 53 mins

Come on! You could do that mathspiggies!!!!!

………………………………………………

………………………………………………..

8gloom

 In a group of 500,000 US teens how many are serious cave dwellers or, to be more accurate, how many spend less than 3 hrs a week outdoors?

It is an amazing 30.1%.

500,000 x 30.1/100

= 150, 500 creatures of the gloom.

Come on you teen gloomagogs get outdoors. You need the sun. You need the Vitamin D.

………………………………………………

………………………………………………..

9m&ms

How many calories in 500,000 m&ms?

There are an amazing 400 million m&ms produced everyday in the US. One m&m weighs 0.7g.

And calories in 1 m&m =  3.4 cal

500,000 m&ms weigh:

500,000 x 0.7 = 350,000 g

= 350 kg

As 400 million or 8 x 500,000 m&ms are produced each day, that is 8 x350 kg or 2800 kg or 2.8 tonne.

Calories in 500,000 m&ms is:

500,000 x 3.4 = 1, 700, 000 Cal

m&m kid

As the average consumptionof chocolate in the US is 5.18 kg per year eating 500,000 m&ms would take:

ranking_of_consumption_chocolate_2007

350 kg/ 5.18 kg

= 67.6 years!!!!!!!!!!!!!!!!!!!!!!!!

You better get going!!!!!

………………………………………………

………………………………………………..

10ablink

Blink rates vary but the average blink rate in a laboratory setting for a human is 10 blinks per minute.

How long would it take for you to blink 500,000 times?

500,000/10 = 50,000 minutes

= 50,000/60 hrs = 833.3 hrs

= 833.3/24 = 34.7 days

= 34 days 17 hrs 17 mins

But don’t think it or you’ll go blink crazy!!!!

h1

Zombie Maths 12: Mean, Median and Mode

December 13, 2011


Zombies don’t bleed but Hollywood keeps splattering Zombies in FAKE BLOOD in movies. So every Zombie must know the cost of FAKE BLOOD.

So much FAKE BLOOD seems to be sold in America we have to use American volumes:

1 US fl oz = 29.6 ml

1 US pint = 16 US fl oz =  473 ml

1 US gallon = 8 US pints = 3785 ml = 3.79 litres

These are approx values as  manufacturers round off conversions from fl oz to ml.

Mathspig found 3 types of fake blood out there but Halloween Blood, Stage Blood and Movie Blood.

.

Halloween Blood can be found @ Party City

Halloween Blood

Cost

  Volume*        

Bottle of Blood 1 pint   

$ 6.99

1 pint

473 ml

Gallon of Blood 

$29.99  

128 fl oz

1 gallon

3785ml

test tube Fake Blood

$1.99

 

1 can Fake Spray Blood

$5.99

73.9 ml

1 bottle Fake Blood

$ 5.99  

59.1ml

* Mathspig used more accurate volume conversions than shown on products.

Stage blood @ Stage Makeup

Stage Blood

Cost

Volume        

Stage Blood Edible

$ 6.25

0.5 fl oz 14.7ml

Stage Blood Edible

$12.29  

4.5 fl oz

133ml

Stage Blood Edible Dark Venous

$17.16

9 fl oz 266ml

Stage Blood Edible 1 Litre (Bright Arterial)

$49.79  

33.8 fl oz

1000ml

.

 Movie Blood @ Thomasfx

Movie Blood

Cost

Volume        

Bright Arterial Squirt Blood

$4.99

0.5 oz

14.7ml

Reel Creations Fresh Blood Gel

$29.99

8 fl oz

236.6 ml

Blood Paint A & B

$149.99

32 fl oz

946 ml

Reel Blood Lung in aged blood

$129.99

1 gallon

3785ml

Thomas FX Movie Blood

$49.99

32 oz

Thomas FX Movie Blood

$89.99

64 oz

Thomas FX Movie Blood

$129.99

128 oz

1 gallon 3785ml

Mean, Mode and Median Costs for Fake Blood:

.

Mean: 

This is the average cost. There are 3 types of blood.

Total Cost Halloween Blood = $ 50.95

No. products = 5

Mean = 50.95/5 = 10.19

Halloween Blood Mean is $ 10.19


Total Cost Stage Blood = $ 85.49

No. products = 4

Mean = 85.49/4 = 21.37

Stage Blood Mean is $ $21.37

.

Total Cost Movie Blood = $ 584.93

No. products = 7

Mean = 85.49/4 = 83.56

Movie Blood Mean is $83.56

.

Mode:

Mode is the most common number or cost.

Halloween Blood Mode = $ 5.99  (2 products)

Stage Blood : No Mode

Movie Blood Mode = $ 129.99 (2 products)

  ,

Median:

Median is the mid-point price.

Halloween Blood Median = $ 5.99

Stage Blood Median =  no median

Movie Blood Median = $ 89.99

h1

2. Boogey Boogey Bugle Maths

August 3, 2011

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Take bugle into class. When kids do something great promise to play it having explained previously your total incompetence.

Otherwise, play a trumpet fanfare from youtube. You don’t need the visuals, just the sound.

Best ever trumpet fanfare (Note. This was used in 9/11 memorial services so some sensitivity may apply.)

Or, some coronation music.

If youtube is blocked in your school go to IT person to find out how to convert a youtube clip to a downloadable file or go to Vixy.net and paste in URL.

h1

8 Spiraling our of control!!!!

November 26, 2010

 

 

 

 

 

 

 

 

 

 

 

 

From Nerdytshirt.

h1

We’re All Goin’ On A Summer Holiday …. Will We Need our Winter Woollies?

January 22, 2010

The School Summer Holidays are about to end. The academic year kicks off in Australia at the end of January. Mathspig is in Melbourne enjoying the Summer weather in a city known for having 4 seasons in one day. Just to blast your maths’ neurons into action here are some interesting statistics about Melbourne’s weather.

These are for Monday 18th January:

Now we will have a little play with averages. 

Melbourne’s long term Maximum Average for January is 26C. But if you are traveling to Melbourne in January do not pack bags for the average temp bring clothes for all seasons including some winter woollies!

h1

Mathspig A Go Go!!!!

November 22, 2009


Mathspig is dizzy with excitement over worldwide interest in recent posts. Mathspig keeps in touch with Sarah Ebner (right )who edits the fabulous and informative   Schoolgate Blog, Timesonline (UK). Sarah highlighted my post 10 Biggest Maths Disasters in the World  last week and the response was overwhelming ( for a pig!)

 It is a part of Mathspig’s Mission to get teachers, students, anyone talking about maths. That happened. 

 Meanwhile, one of Mathspig’s favourite maths bloggers is Jeff Trevaskis ( Right. Sorry, Jeff, it’s my favourite pic of you.). Jeff teachers high school maths in country Victoria, Australia, and finds time to run Webmaths, which tackles both fun issues and serious maths. One of his recent entries was titled SMELLY JOCKS?

A recent survey published in the Courier Mail suggested that more than half Aussie men wore the same undies for up to 3 days in a row. Eghhhhhh! I suggested to Jeff that an anonymous survey of, um, male students would probably produce a Normal Distribution or Bell Curve. But we’ll have to dub this one the SMELL CURVE.


  

COMING SOON: TWILIGHT MATHS