Answer:
18
Step-by-step explanation:
to find perimeter add the four sides
There are 52 weeks in a year.
Using 50 for the number of weeks in a year is a(n) round.
Rounding is a process which we approximate the known number by just scaling it up or down.
In rounding the numbers less than 5 are scaled to one number less than the given integer and numbers such as 5 or above than 5 are scaled a number greater than the given number .
For example if there were 55 or more than weeks in a year we can say there are approximately 60 weeks in a year.
But there are 52 weeks so we <u><em>round</em></u> it to 50 weeks as 2 is less than 5.
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Answer:
4x - 11
Step-by-step explanation:
Set the expression.
9x - 7
- (5x + 3)
-------------
First, distribute -1 to all terms within the parenthesis:
-(5x + 3) = -5x - 3
Simplify. Combine like terms.
(9x - 7) + (-5x - 3) = 9x - 5x + (-7) - 3
(9x - 5x) + (-7 - 3)
4x - 11
4x - 11 is your answer.