The Police station records how many cars passed through a particular intersection for 5 consecutive days decide of a stop light
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
This is already stated in the question as:
Option D. 2(n + 9) is the right answer
Step-by-step explanation:
The word problems are converted into mathematical problems to solve simply.
for the given problem
"two times the sum of a number and 9"
Let n be a number then
when there is and between two things they are performed first then next operation is performed so
the sum of a number and 9
Then
two times the sum of a number and 9
Hence,
Option D. 2(n + 9) is the right answer
Keywords: Mathematical notation
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