exam Maths Puzzle Numerical Ability

Solve the compound inequality and write the solution set using interval notation: 3<5-x<7

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exam Other Question

Karen biked at 13 mph for a time but got a flat tire. She then walked at 5 mph. She traveled a total of 93 miles. Had she biked the whole time, she would have gone 117 miles. How many hours did she walk? x/2 + 4x/3 + 2x/4 = 7 solve for x

Solve for "x" : 3(2x + 4) = 2(5x - 3) + 2