Answer:
it is variables
Step-by-step explanation:
Answer:
1) is greater than
2) is equal to
3) is equal to
4) is less than
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Given parameters:
Length of the suitcase = 24 inches
Length of the diagonal = 30 inches
Unknown:
Length of zipper required to cover the perimeter = ?
The length of this zipper is the same as the perimeter of the rectangular suitcase.
Perimeter of a rectangle = 2(L + B)
where L is the length and B is the breadth
Now, let us find the find the unknown breadth;
Using Pythagoras theorem;
30² = 24² + Breadth²
Breadth² = 30² - 24² = 324
Breadth = √324 = 18 inches
Perimeter of the suitcase = 2(24 + 18) = 84 inches.
The length of zipper that will cover this suitcase is 84inches.
The easiest way to start this problem is to note the number of liters in the barrel right now.
That's x
You add 6 liters to that amount
You get x + 6
From that y liters are lost.
Now your total is
x + 6 - y.
If you switch the order (which you should) you get
x - y + 6
Answer: A