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Which past tense do you use when?

In German, there are 3 ways of forming the past tense . The easiest 2 are the Perfect and Imperfect , and there is another slightly more complex form called the Pluperfect . As a quick summary, the Perfect t...
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Answered by Grace C. • German tutor
2848 Views

Mike, Sam and James play football. Mike scores 8 more goals than James. Sam scores 5 more goals than Mike. Altogether they score 72 goals. How many did Sam score?

Let James = x Mike = x+8 Sam = Mike+5 = (x+8)+5 = x+13 Altogether: James + Mike + Sam = 72 Therefore, x + (x+8) + (x+13) = 72 Now solve for x: 3x + 21 = 72 Bring 21 to the other side: 3x = 72-21 = 51 Divide ...
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Answered by Joshua R. • Maths tutor
4446 Views

How to use the quadratic formula, using the following equation: x^2 + 3x - 4

To begin you must identify the co-efficients of each x term, essentially what number comes before x 2 , x and the integer value. a = 1, b = 3, c = -4 . We then substitute these values into the quadratic form...
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Answered by Oliver B. • Maths tutor
3775 Views

I know the formula, but I don't understand it.

A thorough understanding of all the mathematical formulas prescribed in the subject specification is crucial for your survival in the no-mans-land of the maths exam, where your examiner tries his best to mur...
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Answered by Le L. • Maths tutor
4149 Views

How to write pretty and easily recognizable characters?

Traditionally, a Tian-Zi notebook is used to help the student in getting used to the balance of Mandarin characters. When practising, I recommend first getting used to writing particular characters like hear...
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Answered by Le L. • Mandarin tutor
2017 Views