exam Maths Puzzle Numerical Ability

x+3y+5z-4w=1
X+3y+z-2w+v=-1
x-2y+z-w-v=3
x-4y+z+w-v=3
x+2y+z-w+v=-1

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exam Other Question

John increased the area of his garden by 120 ft^2. The original garden was 12 ft. by 14 ft., and he increased the length and the width by the same amount. Find the exact dimensions of the new garden and approximate the dimensions in feet and inches. Study problems

Express as a single logarithm: 5 log, x+log, y-2log, z

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