Answer:
-x+4
Step-by-step explanation:
-1(x-4) any expression multipled by 1 remains the same
-(x-4) remove the parenthesis
-x-4
120/100 = x/15
100x = 1800 (Divide by 100 on both sides)
x = 18
Answer:
4 square feet is equal 576 square inches
Step-by-step explanation:
to convert 4 square feet to square inches
Now, We know that 1 feet = 12 inches
∴
Now we need to find 4 square feet
![4 \times 1\ square\ feet= 4\times 144 \ square \ inches\\4 \ square\ feet= 576 \ square \ inches](https://tex.z-dn.net/?f=4%20%5Ctimes%201%5C%20square%5C%20feet%3D%20%204%5Ctimes%20144%20%5C%20square%20%5C%20inches%5C%5C4%20%5C%20square%5C%20feet%3D%20%20576%20%5C%20square%20%5C%20inches)
Option A and Option F
The expressions that represent the perimeter of rectangle are 4s + 1 and ![2(2s + \frac{1}{2})](https://tex.z-dn.net/?f=2%282s%20%2B%20%5Cfrac%7B1%7D%7B2%7D%29)
<em><u>Solution:</u></em>
From figure,
Length = s
Width = ![s + \frac{1}{2}](https://tex.z-dn.net/?f=s%20%2B%20%5Cfrac%7B1%7D%7B2%7D)
<em><u>The perimeter of rectangle is given as:</u></em>
perimeter = 2(length + width)
Substituting the values we get,
![perimeter = 2(s + s + \frac{1}{2})\\\\perimeter = 2(2s + \frac{1}{2})](https://tex.z-dn.net/?f=perimeter%20%3D%202%28s%20%2B%20s%20%2B%20%5Cfrac%7B1%7D%7B2%7D%29%5C%5C%5C%5Cperimeter%20%3D%202%282s%20%2B%20%5Cfrac%7B1%7D%7B2%7D%29)
Thus option F is correct
On further simplification,
![perimeter = 2(2s + \frac{1}{2})\\\\perimeter = 4s + 2(\frac{1}{2})\\\\perimeter = 4s + 1](https://tex.z-dn.net/?f=perimeter%20%3D%202%282s%20%2B%20%5Cfrac%7B1%7D%7B2%7D%29%5C%5C%5C%5Cperimeter%20%3D%204s%20%2B%202%28%5Cfrac%7B1%7D%7B2%7D%29%5C%5C%5C%5Cperimeter%20%3D%204s%20%2B%201)
Thus Option A is correct
Answer:
A. 45%=45/100=9/20
Step-by-step explanation:
45% is 45 out of 100 or <em>45/100</em>
9 divided by 20 equals <em>0.45</em>
They are both equal to 45%