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3 teas and 2 coffees have a total cost of £7.80 5 teas and 4 coffees have a total cost of £14.20 Work out the cost of one tea and the cost of one coffee.

We approach this question using algebra.Lets say the price of teas=x, and the price of coffees = ytherefore 2 equations can be written:3x+2y=7.805x+4y=14.20we now treat these equations as simultaneous equati...
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Answered by Abigail R. • Maths tutor
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Find the value of 125^(2/3)

laws of indices state that the denominator of the fraction is the root of the number or letter, and the numerator of the fraction is the power to raise the answer to. Therefore, first we handle the 3 on the ...
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Answered by Abigail R. • Maths tutor
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How to differentiate 9x^2+ 4x-7=0

To differentiate we multiply the power by the number infant of the x, and then reduce the power by 1. So the answer would be 18x+4=0
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Answered by Abigail R. • Maths tutor
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Define the Renaissance and its innovation in art

The Renaissance started in Italy in the 15th Century. The birthplace of the Renaissance was Florence. The word (from the Italian "rinascimento") means "rebirth". This cultural movement re...
CS
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How might you use your body language and vocal tone to convey anger?

When conveying anger, I would tense my body, clenching my my fists with my back straight and rigid, so that the physical tension reflects the emotional tension in this moment. When moving my arms about, I wo...
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Answered by Madeleine B. • Drama tutor
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