exam
Maths Puzzle
Numerical Ability
16. 5x - 2y = -5
Y - 5x = 3
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exam Other Question
solve for x:
(6-x)/3 + x/-5 = -7
Colin invested $32,000, part at 8% and part at 12%. If the total interest at the end of the year is $3,160, how much did he invest at each rate?