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If 168 is four sevenths of a number then divide this by 4 to give 1 seventh of the number.
168/4 = 42
So 42 is one seventh of the number.
Now multiply this by 7 to find the number.
42*...

When finding the gradient of a line we need to first locate any two points, on the line, where we know the x-coordinates and we know the y-coordinates. Now, with these two coordinates we need to find two ...

Chlorine is in Group 7 of the periodic table. Therefore a chlorine atom has 7 electrons in its outer shell. this atom needs one more electron to form an ion with a full outer shell. Hence the ion formed w...

Louis Pasteur showed that airborne microbes were the cause of disease, where previously people had blamed superstition. He built on the work of Edward Jenner, who discovered the smallpox vaccine, and help...

One of the reasons why the Weimar Republic was in a state of crisis was because of its poor reaction to the French and Belgian occupation of the Ruhr in 1922, namely paying their workers to go on strike l...