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How do I know whether to use the imperfect or the preterite tense?

The imperfect tense is used to describe actions that do not have a clear beginning and end. For example, actions that were repeated (‘I used to go to school’), or, what we could call ‘background information’...
JS
Answered by Julia S. • Spanish tutor
2522 Views

Simplify fully (3x^2 -8x- 3)/(2x^2-6x)

When simplifying algebraic expressions, we should first factorise each term fully to find any common factors. First we should factorise the numerator where 3x 2 -8x-3 factorises to (3x+1)(x-3). Next, we shou...
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Answered by Paaras P. • Maths tutor
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x^2 +y^2 =25, y – 3x = 13 - Simultaneous Equations (June 2017)

x = -4.8x = -3
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Answered by Angelo U. • Maths tutor
3241 Views

4x+2y=22, (y/2)+(x/4)=2.5

x=4,y=3
IL
Answered by Ieuan L. • Maths tutor
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2 chocolates weight 250g, there are 220 calories in 100g of chocolate. How many calories are in one chocolate?

275 Calories
IL
Answered by Ieuan L. • Maths tutor
4913 Views