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jack104365
15.04.2020 •
Mathematics
The width of a rectangle is 9 inches more than 5 times the length. If x represents the length, write an algebraic expression in terms of x that represents the perimeter of the rectangle. Simplify the expression.
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Ответ:
The expression that represents the perimeter of the rectangle is "12*x + 18", where "x" is the length of the rectangle.
Step-by-step explanation:
In order to solve this question we were given an expression that relates both dimensions of the rectangle. This expression in a mathematical form where "x" is the length and "y" is the width is shown bellow:
y = 9 + 5*x
The perimeter of a rectangle is given by:
perimeter = 2*length + 2*width
perimeter = 2*x + 2*(9+5*x)
perimeter = 2*x + 18 + 10*x
perimeter = 12*x + 18
The expression that represents the perimeter of the rectangle is "12*x + 18", where "x" is the length of the rectangle.
Ответ:
123-32 = 91 because of the amount of single brushes
Then we have 91 non-single brushes that are in the packages, and if there are 5 packages, then next we must divide.
91÷5 ≈18 packages with 32 single brushes