Note: Steps of student are not given. So, the proper steps of the solution are provided below.
Given:
The inequality is
To find:
Where the student made any errors?
Solution:
We have,
On dividing both sides -5 change the sign of equality because -5 is a negative number.
Therefore, the solution of given inequality is .
Perimeter of window is 192 inches.
Step-by-step explanation:
We are given:
Area of rectangular window = 2160 inches square
Length of rectangular window = 60 inches
Required:
Perimeter of window=?
Formula to find Perimeter is:
We first find width of rectangular window by using formula of area:
Putting values:
So, width = 36 inches
Now finding perimeter:
So, perimeter of window is 192 inches.
Keywords: Perimeter of rectangle
Learn more about Perimeter of rectangle at:
#learnwithBrainly