2012 Year 9 &10 Mathematics Marathon (2 Viewers)

[qwerty44]

Re: 2012 Year 9 &10 Mathematics Marathon

A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

Well if you're in the older years, posting questions you have done in the past would be great! xD

 

[russ3l]

Re: 2012 Year 9 &10 Mathematics Marathon

A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?

i havent done capacity D:

 

[twinklegal19]

Re: 2012 Year 9 &10 Mathematics Marathon

I still have my maths exam papers that I did last year, I will post up the question that I got wrong hehe (once the last few questions have been answered)

Anyone who wants past year 10 papers from my school, feel free to PM me

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

might be stupid but

factorise:



year 9-10 only!

Latex thing is weird lol took me a while to do this TT

 

[ymcaec]

Re: 2012 Year 9 &10 Mathematics Marathon

might be stupid but

factorise:



year 9-10 only!

 

[bleakarcher]

Re: 2012 Year 9 &10 Mathematics Marathon

i havent done capacity D:

the question is basically asking for the maximum amount of mushrooms you can store in the standard case. you assume that each case is used to this maximum.

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

Digging up my old year 9/10 maths books

A rectangular lawn, with length x m and width y m in the ratio 8:3, is surrounded on all sides by a path 80cm wide. The outer perimeter of the path is 50.4m. Find the area of the lawn.

Area is

Whoops!

 

[ymcaec]

Re: 2012 Year 9 &10 Mathematics Marathon

probably 96 m2 ?

 

[twinklegal19]

Re: 2012 Year 9 &10 Mathematics Marathon

Area is

Whoops!

probably 96 m2 ?

correct

 

[ymcaec]

Re: 2012 Year 9 &10 Mathematics Marathon

A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?

5 kg ?

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

A mushroom farmer has sent an order of 70 kg of mushrooms to the markets in standard cases. If he had used larger cases, each capable of holding 2 kg more, he would have used 4 fewer cases.

What is the capacity (in kg) of the standard case?

I believe the capacity of the standard 14kg xD

 

[twinklegal19]

Re: 2012 Year 9 &10 Mathematics Marathon

here's another one

simplify





EDIT: just fixed it, my bad

 

[ymcaec]

Re: 2012 Year 9 &10 Mathematics Marathon

here's another one

simplify





EDIT: just fixed it, my bad

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

2/xy

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

5 sisters are born on 2 year successive intervals. The eldest sister is twice the age of the youngest sister. What is the age of the 3rd youngest sister?

 

[twinklegal19]

Re: 2012 Year 9 &10 Mathematics Marathon

2/xy

correct!

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

correct!

Sweet. Loving this thread which I created along with mwong xD

 

[RivalryofTroll]

Re: 2012 Year 9 &10 Mathematics Marathon

Here's a good question:

Find the minimum value for the term 3^(x^2-8x+14)

 

[TerenceM]

Re: 2012 Year 9 &10 Mathematics Marathon

Here's a good question:

LOL wait! the ^ is to the power right?