Answer:
60 feet of fencing
Step-by-step explanation:
Let x feet be the width of the garden plot, then 2x feet is the length of the garden plot.
The area of the garden plot is

Find the perimeter of the rectangular garden plot:

Answer:
k = 30
Step-by-step explanation:
Given
=
( cross- multiply )
3k = 90 ( divide both sides by 3 )
k = 30
Answer:
Example 2 Evaluate 5x2 − 2( y + 1) + 9 when x = 2 and y = 1. 5x2 − 2( y + 1) + 9 = 5(2)2 ... In this lesson, you will. ○ use addition or subtraction to solve equations. ○ ... So, the value x = 4 is a solution of the equation x + 3 = 7.
Step-by-step explanation:
Answer:
-343
Step-by-step explanation:
Given the expression: 
You will notice that the terms in the numerator and denominator have the same base (-7).
This makes it very easy to simplify by applying the division law of indices.

Therefore:
