Assume that the other number is y.
we know that the addition of both number is -9
this means that:
x+y=-9
reorder this equation to seperate the y variable:
y=-9-x
Width = 10cm
Length = 25cm
<u>Explanation:
</u>
Given, width:length = 2:5
Let width = 2x ,
So, length = 5x
Perimeter of rectangle = 2x(length + width)
According to the question,

Hence,
Width = 10cm
Length = 25cm
Since the values on both sides are different, hence graph of option C is correct.
<h3>What is inequality?</h3>
Inequality is defined as the relation which makes a non-equal comparison between two given functions.
Solutions to inequality graphs
Inequalities are an equation that does not include only the equal sign.
The system of inequalities are;

The first function is an exponential function.
Since the values on both sides are different, hence graph of option C is correct.
Learn more on inequality here:
brainly.com/question/12089993
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