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When starting with a fraction with 2 individual components, before any addition, subtraction or simplification can take place, the first step will be making them both having the same denominator. Once you...
Answer: 1/115
The easiest way to solve this problem is to draw part of a tree diagram to see the probabilites of each colour being picked each time Laura pulls a ball out of the bag (a full diagram...
Say I have a fraction with 2 surds, such as √10 / √6. To rationalise this, we need to get the dominator (bottom fraction) to be an integer. As √10 / √6 x 1 still gives √10 / √6, and we can write 1 as √6 /...
Ian had a 5% rise, so £420 = 105% of his original pay
To find 1% of his original earnings, divide £420 by 105.
Multiply this by 100 to find his old pay: 1% of his original earnings =...
Simplist surd form means use Quadratic equation
Write out Quadratic equation
Write out value of a, b and c
Fit these values into equation
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