Tuesday

September 16, 2014

September 16, 2014

Posted by **Anonymous** on Wednesday, April 18, 2012 at 12:00am.

- math -
**Anonymous**, Tuesday, May 8, 2012 at 3:55amplease help me too

- math -
**DHNWAC**, Monday, May 21, 2012 at 5:26amWe must assume that the centre of the tile is perfectly centered on a square on the number chart, and that the chart is big enough for all of the tile to stay within the borders of the chart.

If this is the case it can be proven in the following way:

Let the number covered by the centre be denoted x. Let y < x be any other number on the chart covered by the cross tile. We may write y = x-k for some natural number k.

Due to symmetry y' = x+k will be covered on the chart as well. Since the tile only covers pairs (x-k,x+k) and each pair has x as average the average of all numbers covered will be x. This could be explained in a little more detail but I hope this suffices as it gets lengthy otherwise!

**Answer this Question**

**Related Questions**

math - i am very confused with the question: when a cross tile is placed on a ...

Maths Problem solving - when a cross tile is placed on a number chart, the ...

math - when a cross tile is placed on a number plane the centre number is the ...

math - a c-shaped tile (2 in the top row, 1 on the second, 2 on the bottom) can ...

Math - Journal 5. Look at the hundred chart. One number is wrong. Cross out that...

math - A wildfire spread for 7 days and covered a total 780 square miles. How ...

MATH - ALLY HAD A GAME WITH 2 GROUPS OF PLAYING TILES. THE FIRST GROUP OF 24 ...

math - Regis has a bag with 8 tiles numbered 1 through 8. He randomly draws one ...

physics - On a long journey if 10% of the distance is covered at an average ...

math - A school is soundproofing a band room with insulating tiles. The room is ...