Answer:
Length = 34 and Width = 30
Step-by-step explanation:
This is a simple system of equation that is mainly solved using substitution, so keep in mind the following key points:
- Rectangle's Perimeter is 128 ft.
- "the garden is 4 feet longer than it is wide," this simply means that the Length is 4 feet longer than the Width: which algebraically translates to
- Perimeter formula for Rectangle is
First, we find the Width by plugging the given values in the formula:
All we did here was substituting 4 + W for L to find the Width.
Now, to find the Length we plug in the value of W and solve for L:
Tip: always sketch a rough geometrical diagram of word problems, it helps. (Refer to the diagram attached)
Keep working hard and good luck. <3
10a+4+14a-2=14a+31
Add the common variables
24a+4-2=14a+31
24a+2=14a+31
Subract 2 from each side
Subract 14a from each side
Then divide each side by 10
A=-2.9
A= -3.7
Answer:
The length of the first piece is 5 ft
The length of the second piece is 20 ft
The length of the third piece is 25 ft
Step-by-step explanation:
Let
x----> the length of the first piece
y ---> the length of the second piece
z ---> the length of the third piece
we know that
-----> equation A
-----> equation B
----> equation C
substitute equation B and equation C in equation A and solve for x
<em>Find the value of y</em>
<em>Find the value of z</em>
therefore
The length of the first piece is 5 ft
The length of the second piece is 20 ft
The length of the third piece is 25 ft
Answer:
B) f^-1(x)=3-5x
Step-by-step explanation:
y=3-x/5
rearrange the equation so you have x variable on the left side
5y=3-x
+x +x
5y+x=3
-5y -5y
x=3-5y
so answer is b)
f^-1(x)=3-5x
The answer should be a total of 3