Tuesday

July 7, 2015

July 7, 2015

Total # Posts: 13

**Maths**

A cylinder lenght 13cm and radius 5cm is made of cardboard .use the value of 3.1 py at (a) a closed cylinder (b) a cylinder open at one side
*June 1, 2015*

**Math**

1. How many bricks each measuring 25cm×11.25cm×6cm, will be needed to build a wall of 8m×6m×22.5? 2. what decimal of an hour is a second? 3. without a calculator, 0.04×0.0162 is equal to...... 3. (0.04)^ -1.5 4. if m and n are whole numbers such ...
*April 22, 2015*

**Math**

thanks
*April 20, 2015*

**Math**

1. if 60% of 3/5 of a number is 36, then the number is......... Pls show working. 2. the average weight of 16 boys in a class is 50.25kg and that of the remaining 8 boys is 45.15kg. Find the average weight of all the boys in the class.
*April 20, 2015*

**Math**

thanks soo much
*April 10, 2015*

**Math**

three whole numbers have their LCM as 180 and their HCF equal to 3. two of the numbers are 45 and 60. Find the third number.
*April 10, 2015*

**Geometry**

59 m
*January 14, 2013*

**Math**

Pls help .[1] Solve the eguation 4*=28. [2] change 1/20 to decimal [3] change 60% to a common fraction . Pls i need the solving thank you
*February 23, 2012*

**scientist**

What is the kinestic energy of a bullet of 22kg fire from a gun with a speed of 6m`s
*February 23, 2012*

**physics**

Estimate the rise in temperature of the brake discs in a car of mass 1200g,travelling at 30m/s which is brought to rest by the application of the brakes alone,the brake disc have a total mass of 5kg.Assummed that there is no heat loss and that the material of the 4 brake disc ...
*February 13, 2012*

**physics**

Hot water of mass 80g, at a temperature of 100degree celcius is pourd into 30g of water at 30degree celcius. Assuming that no heat is lost, calculate the final temperature
*September 2, 2011*

**chemistry**

How many of grams of aluminum would be produced from the decomposition of 21.0 g of Al2O3
*December 5, 2010*

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