What is the length of a rectangle with width 12 in. and area 90 in^2?
2 answers:
Answer:
The answer is
<h2>length = 7.5 in</h2>Step-by-step explanation:
Area of a rectangle = length × width
From the question
Area = 90 in²
Width = 12 in
To find the length substitute these values into the formula and solve for the length
We have
90 = 12l
Divide both sides by 12
We have the final answer as
<h3>length = 7.5 in</h3>Hope this helps you
You might be interested in
Answer:
Jake's error in step 3
Step-by-step explanation:
we have
Complete the square
step 1
Group terms that contain the same variable, and move the constant to the opposite side of the equation
step 2
Complete the square. Remember to balance the equation by adding the same constants to each side
step 3
Rewrite as perfect squares
Jake's error in step 3
He placed 6 instead of 3 in the left side
step 4
take square root both sides
step 5
step 6
step 7
x=5 and x=1