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The gradient of a striaght line measures how much it changes when you move in one direction. For example when we move to the right in the x direction, the line goes down. The equation for finding the grad...

The first equation can be multiplied by 3 to give 3x + 3y = 9. Then these two equations can be added by summing both left hand sides and both right hand sides to obtain the new equation 3x + 3y - 3x + 5y ...

This question can be solved using a tree diagram. First we need to map out the two possible outcomes from the question:

H=heads T= tails. The first scenario is HHH, as the probability of H each tim...

38% and 38/100.

We can use the following formula: Amount after n years' compound interest = Initial amount x (1 + r)ⁿ r = The interest rate in decimal form. n = Number of years. Simply plug the values into our...