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Maths Puzzle
Numerical Ability
what are functions and what is domain and range? Can you give me an example to give me a better understanding?
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HELP! Ana, Bob, and Chris will not disclose their weights but agree to be weighed in pairs Anna and Bob together weigh 226 pounds. Bob and Chris together weigh 210 pounds. Anna and Chris together weigh 200 pounds. How much does each student weigh?
Need help,
5^2x=5^(x^2-12) The parenthesis means the exponent of 5.
For the first step I have 2xln5=(x^2-12)ln5 but now I'm not sure how to finish the problem.