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Solve the equation: 2x+3y=8 & 3x-y=23

2x+3y=89x-3y=6911x=77x=7
2(7)+3y=83y=8-14y=-2SOLUTION : x=7, y=-2

Answered by Maths tutor
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Explain what oxidation and reduction means in terms of electrons.

The oxidation of a species, in terms of electrons, is when the species loses electrons. The reduction of a species, on another hand, is when the species gains electrons in a reaction.

IA
Answered by Ishaan A. Chemistry tutor
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State the conditions under which a binomial distribution can be approximated as a normal distribution, and state how the parameters needed would be calculated.

This is a two - part question. The first part is stating the necessary conditions, of which there are two: the number of trials must be large (more than 50), and the probability of success or failure must...

Answered by Maths tutor
6132 Views

A tank contains 500L of salty water. Pure water is pumped in at a rate of 10 L/sec, and the the mixture is pumped out at a rate of 15L/ sec. If the concentration of salt is 5g/L initially, form an equation of amount of salt, s, at t seconds.

This is a word problem with the task of forming a first order differential equation (or DE), and involves two major aspects that need to be worked out: the volume of water in the tank at any given point, ...

2704 Views

Explore the significance of the emptiness of modern life in this extract

Within this extract, the emptiness of modern life is characterised as life without purpose or meaning; namely a spiritual emptiness resulting from being engulfed by the pressures of societal suburban expe...

Answered by English Literature tutor
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