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Hi its Mike here. Please can you explain how to apply the modulus function to an equation or inequality, such as /5x+2/ = 3 or /7x-6/
How should I work this out? A car completes outward journey at 69mph. It returns in heavy traffic over same distance at 23mph. What is the average speed over entire journey? I know it is something to do with the return journey taking 3 times as long.