if it takes 5 people 125 days to compete the research then we know that 50 persons will do it in 25 days
so you need <u>50</u> people!!!
Price in the sale=£31-10% of £31
price in the sale=£31-(10/100)*£31=£31-(10*£31)/100=£31-£3.1=£27.9
The price in the sale is £27.9
Since this is a polygon with 6 sides, it has a total of 720 degrees.
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So adding together all the angles, you get:
(2x-50) + (x+40) + (x+20) + x + 150 + 80.
Simplify.
5x+240. And since you know all the angles add up to 720 degrees, set it equal to each other.
5x+240 = 720
5x= 480 (720-240)
x= 96
Finally, plug in x to get the rest of your answers.
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Answer: X=1
Explanation: When solving an equation, the goal is to isolate the variable (X). In order to do so, you must move everything else on the same side of the equation to the other side. So, in the equation 4=3+x, 3 is on the same side of the equation as X, so you must move it to the other side. When moving a number from one side of an equation to the other, you change the operation to the opposite: “+” becomes “-“, multiplication becomes division. Since the 3 in your equation is positive (+3), when you move it to the other side, it becomes “-3”. Thus:
4-3=x
1=x or x=1
Hope that helps シ