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When solving a problem we must understand what variable represents as well as its units.We must also understand what types of numbers it could be,whether positive,negative,decimals,fractions,etc
Answer:
Step-by-step explanation:
Let us assume that the number of pieces that can be cut = x
Length of each shelf board = 1 1/3 feet
= 4/3 feet
Total length of board available for making shelf = 18 foot
Then
4x/3 = 18
4x = 18 * 3
4x = 54
x = 54/4
= 13 2/4
As we can see from the above deduction, 13 shelf's can be made from the 18 foot board. There will be about 2/4th of the board remaining, but that 2/4th part will be wasted as it cannot create a complete board.I hope the answer is to your satisfaction and the explanation is clear to you.
Answer: {11, -11}
Step-by-step-explanation: To solve for <em>x</em> in this equation, since <em>x</em> is squared, we simply take the square root of both sides of the equation to get <em>x</em> by itself.
It's important to remember however that when taking the square root of both sides of an equation, we always use <em><u>plus</u></em> or <em><u>minus</u></em>.
In other words in this problem, since x² = 121,
<em>x = + or - 11</em>.
A common mistake is to say that <em>x</em> is just equal to 11. But notice that if you plug a -11 back into the original equation, it also checks.
So our answer to this problem is {11, -11}.
(I'll do my best to explain this:) ) if you put two triangles together they equal a rectangle. In other words if you split a rectangle from upper left corner to lower right corner you get two triangles. So if you multiply the triangle formula twice you get the rectangle formula.