Answer:
Step-by-step explanation:
The perimeter of a rectangle is given by the formula,

We substitute,
and

into the above formula to obtain the expression,


We now group the x and y terms on the Left Hand Side of the equation to get.


We now divide through by 2 to get,

Therefore the width of the rectangle is

When an equation is in standard form, x isn't negative so she should divide everything by a negative 1 to change it into a positive equation.
Answer:
$5
Step-by-step explanation:
10% = 10/100 = 1/10.
1/10 of 50 = 5
Answer:
9 and 18
Step-by-step explanation:
