Let w=width
L= length
3w+1=l
Perimeter -2(l+w)
2(W+3w+1)=42
Divide both sides by 2
W+3w+1=21
Subtract 1
W+3w=20
Add like terms
4w=20
Divide both sides by 4
W=5
The width is 5 inches
3w+1=l
Input the width into the equation
3(5)+1=l
15+1=l
16=l
The length of the rectangle is 16 inches
The rectangle is 5 x 16 inches
Answer:
Greetings!
The answer to the first image is: 3
The second image is 4
Step-by-step explanation:
Here's how to rationalize a denominator:
1. Multiply numerator and denominator by a radical that will get rid of the radical in the denominator.
2. Make sure all radicals are simplified.
3. Simplify the fraction if it is needed.
I hope this helps you! :)
Answer:
13 inches
Step-by-step explanation:
10 * 1/4 = 2 1/2 inches
16 * 1/4 = 4 inches
2(2 1/2) + 2(4) = 13 inches