Perimeter of a rectangle = 6x + 8
Solution:
Given area of a rectangle =
Let us first factor the given polynomial.
Taking out common terms in the above expression
Taking out common term in the above expression
Area of a rectangle = l × b
Therefore, and
Perimeter of a rectangle = 2(l + b)
The answer is same if you take <em>l</em> = x + 3 and <em>b</em> = 2x + 1.
Hence, perimeter of a rectangle = 6x + 8.
Answer:
x=-4 y =4
Step-by-step explanation:
Look at the line
A = 1/2 * b * h
b = 14
h = 12
A = 1/2 * 14 * 12
A = 7 * 12 = 84 mm^2
Answer:
5
Step-by-step explanation:
25 computers in 5 classrooms = 5 computers per classroom
with given condition if there are equal computers in all classrooms
Answer:
y=2
Step-by-step explanation:
-(3y+2) -(-2y-4)=0
Distribute the minus signs
-3y -2 +2y +4 = 0
Combine like terms
-y +2 = 0
Add y to each side
-y+y +2 = 0+y
2=y
Check
-(3*2+2) -( -2*2-4) =0
-(6+2) -(-4-4)=0
-8 - (-8) =0
-8+8 =0
0=0