Step 1: Let x be the given repeating decimal.
x=0.9
This means x=0.9999...
Step 2: Multiply both sides of the equation by 10, since one digit is repeating.
10x=9.9999...
Step 3: Subtract the original equation (x=0.9999...) from the new equation (10x=9.9999...).
10x−x=9.9999...−0.9999...
9x=9
Step 4: Solve for x.
x=99
x=1
The decimal 0.9 can be written as 11 in the form QP.
The final answer is 11.
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