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Maths Puzzle
Numerical Ability
how do you use elimination to solve for the x and the y
11x - 5y = 80
9x - 15y = 120
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A man invests in a mutual fund, part of which earned 11% interest and part of which earned 6.5%. If the total amount invested was $5000 and the interest earnd was $345, how much wa
I just wanted to know if I did this problem right. Please e-mail me the answer so I can check it out thanks.
1 / radical x + 2 / x