Answer:
The length would be 1.5x + 5.
Step-by-step explanation:
So first with this, note that 2 length + 2 height gives the perimeter of the rectangle.
Given this:
2(1/2x + 4) + 2(?) = 4x+18
x+8 + 2(?) = 4x+18
2(?) = 3x+10
? = 1.5x+5
1.5x + 5 = 1.5x + 5
The length would be 1.5x + 5.
To double check, by plugging in 1.5x + 5 back into the equation for the perimeter, you will get the same perimeter:
2(1.5x + 5) + 2(1/2x+4) = P
3x+10 + x+8 = P
4x + 18 = P
1. 3x - 2y = 8 Subtract 3x on both sides
-2y = 8 - 3x Divide by -2 on both sides to get y by itself
y = -4 + 3/2x
2. a + b / 3 = 5 Multiply 3 on both sides
a + b = 15 Subtract a on both sides to get b by itself
b = 15 - a
3. 12x - 4y = 20 Subtract -12x on both sides
-4y = 20 - 12x Divide -4 on both sides to get y by itself
y = -5 + 3x
4. y + 3 = -5(x - 2) Multiply -5 to (x-2)
y + 3 = -5x + 10 Subtract 3 on both sides to get y by itself
y = -5x + 7
Is means =
less than is subtract
1/2a -8=2
if you need to know how to do it let me know
Answer:
39
Step-by-step explanation:
Given,
Perimeter of rectangle = 64 units.
Width = y = 11 units
Let,
Length = 20 units, as discussed in the question
Perimeter of rectangle = 2( length + width )
Solving Left Hand Side,
= > Perimeter of rectangle
= > 64 units [ Given ]
Solving Right Hand Side ,
= > 2( 20 + 11 )
= > 2( 31 )
= > 2 × 31

As we can see that 64 ≠ 62
64 ≠ 2( x + y )
Divide by 2 on both sides,
32 ≠ x + y
Hence, option B is correct.