exam Maths Puzzle Numerical Ability

solve the system of equations graphically.

x+y=4, x-y=2

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exam Other Question

Football fields measure 100x53 1/3 yards excluding the two end zones, which each measure 10 x 53 1/3 yards. When comparing the football field with a basketball court that measures Assume all ants are 8 millimeters long and weight 7 milligrams each. Find the number of kilograms in the weight of a string of ants one kilometer long. Explain your answer