Math, asked by karma2255, 1 year ago

Write a pair of decimal whose sum is 0.9 and difference is 0.666 ..find tha pair of decimal

Answers

Answered by rizwan35
3

x + y = 0.9 .........(1)\\  \\ x - y = 0.66 .........(2)\\ adding \: equation \: (1) \: and \: (2) \\  \\ 2x = 1.56 \\  \\ x =  \frac{1.56}{2}  \\  \\ x = 0.78 \\  \\ putting \: this \: value \: of \: x \: in \: equation \: (1) \\  \\ 0.78 + y = 0.9 \\  \\ y = 0.9 - 0.78 \\  \\ y = 0.12 \\  \\ hence \: the \: required \: pair \: of \: decimal \: is \: 0.78 \: and \: 0.12
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