Welcome to H3 Maths

Blog Support for Growing Mathematicians

Posts tagged with billion

Dance of the Pythagorean Triangles …

October3

You saw it here first, and H3 saw it on its world tour (not quite earning what Ed Sheeran did on his recent tour) but still pretty cool. Now, getting back to Ed, here are the stats: According to The Sun, the pop star paid himself a whopping NZ$33.6 million – the equivalent of $92,000 […]

by posted under Uncategorized | tagged under , , , , ,  |  Comments Off on Dance of the Pythagorean Triangles …

A billion trees? Let’s break that down to human levels

November24

In a recent news item a comment was made about reaching a tree-planting target of 1 billion – “With the right incentives and the right conditions, one person could comfortably plant 400,000 trees in a year. So you would need just 250 people planting that amount every year for a decade (10 years) to reach […]

by posted under Uncategorized | tagged under , , ,  |  Comments Off on A billion trees? Let’s break that down to human levels

Having fun in a knowledge economy!

March23

“The NCAA men’s basketball tournament began last Thursday.  It is estimated that more than 60 million Americans have completed tournament brackets predicting the winners and losers.  Across the country, employees are spending workday time monitoring games, and discussing predictions and results with colleagues.  Many are waging bets. According to one estimate, the cost of lost wages […]

by posted under Uncategorized | tagged under , , , , , , , , , ,  |  Comments Off on Having fun in a knowledge economy!

Big Data = Big Maths

October30

According to IBM we create 2.5 quintillion bytes of data every day – taking pictures, posting, texting, tweeting, typing up docs, making videos, sending GPS signals, swiping credit cards, etc. That is a HUGE amount of data and, as Google has shown us, the control and analysis of much of that data = economic benefit. […]

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Big Data = Big Maths

11 billion miles on the clock and still going strong

September6

Yes, intrepid travellers, our vehicle goes 1 billion miles every three years. Big numbers, even for mathematicians like you! “What is it” you may ask and, “Where is it going?” Good questions and an equally good answer. Check out the link here.

by posted under Uncategorized | tagged under ,  |  Comments Off on 11 billion miles on the clock and still going strong

How high is a stack of $100 bills in a $billion??

May27

This caught my attention in one of the dailies; “Imagine a $100 bill,” I began. “Now imagine a wad of them from the bank wrapped up tight. There’s a hundred of them. That’s $10,000. Now imagine stacking wads of $100 bills one on top of another… “A hundred wads and you have a metre. That’s […]

by posted under Uncategorized | tagged under ,  |  Comments Off on How high is a stack of $100 bills in a $billion??

How long to spend these billions?

April11

If you spend $1,000 each day, how long will it take to spend Apple’s 97 billion? Hint: 1 billion = 1,000 million or 1,000,000,000 (and Apple’s value has just reached 600 billion!) Answer is in the Blog Diary 🙂

by posted under Uncategorized | tagged under ,  |  Comments Off on How long to spend these billions?

Yikes – 25 billion!

March5

Wow! There have now been 25 billion downloads from the Apple Store! That is a huge number and big enough to get the attention of any student mathematician!! The world population is also given below (click on it to see the live population meters). You do the sums…how many downloads would that be per person??

by posted under Uncategorized | tagged under , , ,  |  Comments Off on Yikes – 25 billion!

Post Support

Largest number between o and 1 million which does not contain the ‘n’ is 88

 

Rotation SAT Problem: Answer: 4 (see: https://www.youtube.com/watch?v=FUHkTs-Ipfg)

 

Which number has its letters in alphabetical order? Answer: F O R T Y

Hidden Rabbit? Clue: check the trees

How long for the stadium to fill? 45 minutes.

Where are you? the North Pole

Prize Object Puzzle: If Sue does not know where the prize is in the first question, it can’t be under the square. She must have been told it is under another shape. Apply this same logic to Colin. It is then obvious that the prize cannot be under a yellow object. That helps Sue eliminate her yellow shapes. Got the idea?

Algebra Puzzle: Answer = 1

Popular Math Problems Answers: 1, 1

Number of tabs? According to Lifehacker, the ideal number of tabs you should have open is nine. Yes, a single digit. To some, this is like playing a piano and only using a fraction of the notes!

Worst Graph? Where to start. What a visual mess and even some of the lines merge and are impossible to follow. A graph is a visual display of data, with the goal to identify trends or patterns. This is a spider’s web of information which fails to show a clear pattern at all. Solution? Well, different colors would help, or why not group in two or three graphs where trends are similar?

Number of different nets to make a cube is eleven – see this link

Homework Puzzle; The total value of the counters is 486, so halve this to get 243. Now, arrange the counters to equal this amount twice.

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

Archives

H3 Viewers



Skip to toolbar