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Jodie buys 12 cans of cola. There are 330 ml of cola in each can. Rob buys 4 bottles of cola. There is 1 litre of cola in each bottle. Rob buys more cola than Jodie. How much more?

Again, I would highlight the important points of the question. Jodie buys 12 cans which are 330ml in each can. Rob buys 4 bottles which are 1 litre each. From 1), we can figure out how many ml Jodie bought. ...
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Amber earns £7 for each hour she works from Monday to Friday. She earns £10 for each hour she works on Saturday. One week Amber worked for 4 hours on Saturday. That week she earned a total of £180. How many hours did Amber work that week?

So to break this question down, I would highlight the key points of the question. She earns £7 per hour on Monday to Friday. She earns £10 per hour on Saturday You know that in one week, she worked for 4 hou...
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Finding the value of x when 3x + 5 = 35

3x + 5 = 35 In this situation, you would want to take away 5 to both sides. 3x + 5 - 5 = 35 - 5 3x = 30 Then you would want to divide both sides by 3 in order to get x on the left hand side of the equation. ...
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How do you add or take away fractions? E.g: what is 1/3 + 3/4

1/3 + 3/4 First we make the denominator the same. i.e: we would multiple 1/3 by 4 and multiply 3/4 by 3 in order to get the same denominator. 4/12 + 9/12. Now you can add the numerator together as they have ...
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How to find a modulus and argument of w that is a quotient of z1 and z2 such that z1 = 1 + root(3)i and z2 = 1+ i using modulus-argument form?

First of all, transform both z 1 and z 2 into modulus-argument form. To obtain that form, you are going to need a modulus (the length of the hypotenuse on the Argand diagram) and argument (the angle between ...
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Answered by Piotr S. • Maths tutor
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