<span>A = l x w
Since
l = 3w
Substitute the l with 3w
The formula will be
A = 3w + w
A = 4w
An example:
The
given known values are: Length of 4 cm Width is unknown Perimeter is 34
cm Find the dimensions of the rectangle. Since the geometric formula
for perimeter is: </span>
P= 2 (l + w)
L = 2w – 4 cm
W =?
Derivation and solution:
34 = 2 (2w - 4) + 2w <span>
34 = 4w – 8 + 2w</span>
42 = 6w 42/6 = w
W = 7 cm
34 = 2l + 2(7)
34 = 2l + 14
2l = 34 – 14
2l = 20
L = 20/2
L = 10 cm<span> <span>
</span></span>
Answer:
this is my old account and these still dont have answers
Step-by-step explanation:
I think it should be 25 blocks east
Answer:
D.(2, 2)
Step-by-step explanation:
- Staring point = (2, -4)
- Since he moved 6 units up, so, there will be change in only y-coordinate of the starting point and x-coordinate will remain unchanged.
- End point of the segment = (2, - 4 + 6) = (2, 2)
we have

Let's Isolate the variable y in each of the cases and then compare with Fiona's equation to determine the solution of the problem
case A) 
Multiply by
both sides


Divide by
both sides

therefore
the case A) is not equal to Fiona's equation
case B) 
Multiply by
both sides


Divide by
both sides

therefore
the case B) is not equal to Fiona's equation
case C) 
Multiply by
both sides


Divide by
both sides

therefore
the case C) is not equal to Fiona's equation
case D) 
Multiply by
both sides


Divide by
both sides

therefore
the case D) is equal to Fiona's equation
<u>the answer is</u>
