exam Maths Puzzle Numerical Ability

In 1997, Yiannia Kouros of austrlia set the record for the greatest distance run in 24 hour by running 188 miles. After 8 hours he was approximately twice as far from the finish line as he was from the start. How far had he run?

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exam Other Question

4x -12y =5
-x +3y = -1
how do you solve this using the substitution method
y=2xsquared-8x. Find the y-intercepts and any x-intercepts.