exam Maths Puzzle Numerical Ability

Rewrite the linear equation 30x + 5y = 55 in the form y = mx + b . From the new equation, determine the slope and the y-intercept.

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exam Other Question

I have a two part word problem that just became even more confusing. It starts out: Suppose that a market research company finds that at a price of p=$20, they would sell x=42 tile A passenger train can travel 325 miles in the same time a freight train takes to travel 200 miles. If the speed of the passenger train is 25 miles per hour faster than the speed of the freight train, find the speed of each.