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To start, find out 10 per cent of 150. To find a percent, divide by 100 and multiply by the percent. 150 divided by 100 is 1.5, 1.5 multiplied by 10 is 15. Finally, add the 10% on to the original, so 150 + 15 = 165cm. Alternatively, to find 10%, divide by 10, and continue to add to the original.

1st step: Find a common bottom number (denominator)
The easiest way is to multiply both top and bottom of each fraction, by the bottom number of the opposite fraction:
1st fraction: 5 x 8 = 40, 7 x 8 = 56, so we get a fraction 40/56
2nd fraction: 2 x 7 = 14, 8 x 7 = 56, so we get a fraction 14/56
2nd step: Now we have the same bottom number, we can simply subtract the two top numbers (numerators)
40/56 - 14/56 = 26/56
Step 3: Simplify or make the number smaller by finding a common factor
Since both 26 and 56 are divisible by 2, then we get: 26/2 = 13, 56/2 = 28
So our final answer is 13/28.

First of all you need to multiply the first value of each bracket, for example;
x X 2x= 2x^{2}
write this answer at the start of a new line
Then multiply the first value of the first bracket by the second value of the second bracket;
x X -3 = -3x
write this value next to the first answer so 2x^{2} – 3x
Now multiply the second value of the first bracket by the first value of the second bracket;
4 X 2x = 8x
Write this value next the the previous 2 answers so 2x^{2}-3x +8x
Then multiply the 2^{nd} value of the first brack by the second value of the 2^{nd} bracket;
4 X -3 = -12
Write this value next to the previous 3 answers so 2x^{2}-3x+8x-12 = 0 (remembering to write down the answer of the original equation).
Finally we’re going to simplify this equation, look for values with the same powers of x which can therefore be simplified.
So for the above equation -3x and +8x can be simplieifed to +5x (8x-3x=5x)
Therefore the final answer to this equation is
2x^{2}+5x-12 = 0

The answer would be 20cm found by adding 6x2=12cm and 4x2=8cm. I could then go onto ask what the area of the rectangle would be (6x4=24cm^2)

We need to work backwards:
*1/**4* of 48 is the same as 48*÷* 4 = 12. This can be broken down into 48 *÷ *2 = 24 then 24 *÷* 2 =12Now we need to find *1/**3* of 1 12 *÷* 3 = 4. Or if you don’t know this from memory, count up in your 3 times table until you reach 1*1/**2* of 4. This is the same as 4 *÷* 2 = 2.
Final Answer: 2.

Answered by Anna F.

Studies Geography at Manchester

350 CDs.

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