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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 equ...

Answered by Abigail R. Maths tutor
3480 Views

Sketch the graph y=-x^3, using this sketch y=-x^(1/3)

The first step in figuring out this question is to first determine what the y=x3 looks like.If you are not already fimilar with this function, you can use some basic principles to find out wha...

Answered by Deloris O. Maths tutor
2562 Views

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...

Answered by Abigail R. Maths tutor
8615 Views

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

Answered by Abigail R. Maths tutor
1999 Views

What are direct and indirect object pronouns, and how do I use them?

A direct object pronoun is called a COD, and an indirect object pronoun is called a COI. A pronoun is a word that's used to replace a noun to avoid repeating it (for example, him, she, that). The COD and ...

Answered by Emma H. French tutor
1772 Views

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