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2(3a + 5) :

First you have to multiply everything inside the bracket by the number outside the bracket: = 2 x 3a + 2 x 5 or = (2 x 3a) + (2 x 5)

This can then be simplified to give the answe...

Step 1: Identify Variables: 5x, 3x, Step 2: take the smaller one to other side with change in sign: 5x-3x-11= 3 Step 3: Take constants to other side with change in sign: 5x-3x = 3 +11 Step 4: Simplify on ...

Quickest Way:

Put Area = Circumference

Pi x r x r = 2 x Pi x r

Using Cancellation of equations,

r = 2

Important: Trial and error takes time - Cannot do while doing a gra...

3/5 of Cake = 5 x 150 g, Cake Weight = 5/3 x 750 g = 1250g

Important, it is not required to calculate the weight of cake given to you. The inverse of "remaining" fraction can directly giv...

First the number of children that travel by train can be found by dividing 45 by 9 to give 5. Since we know that double as many take the bus, as 2/9 is the double of 1/9,5x2=10 children take the bus. Then...