Answer:
Explanation:
Here, we want to get if the given variable is qualitative or quantitative
While qualitative describes the presence of a quality, quantitative speaks about count or number
Thus, what we have here is that we are talking about likeness and not about the count of basketball players. Thus, in this case, a certain basketball player is liked to be called a favorite because of some of the qualities he/she possesses
Thus, we can conclude that the variable is qualitative
Let <em>a</em> and <em>b</em> be the two numbers. Then
<em>a</em> + <em>b</em> = -4
<em>a b</em> = -2
Solve the second equation for <em>b</em> :
<em>b</em> = -2/<em>a</em>
Substitute this into the first equation:
<em>a</em> - 2/<em>a</em> = -4
Multiply both sides by <em>a</em> :
<em>a</em>² - 2 = -4<em>a</em>
Move 4<em>a</em> to the left side:
<em>a</em>² + 4<em>a</em> - 2 = 0
Use the quadratic formula to solve for <em>a</em> :
<em>a</em> = (-4 ± √(4² - 4(-2))) / 2
<em>a</em> = -2 ± √6
If <em>a</em> = -2 + √6, then
-2 + √6 + <em>b</em> = -4
<em>b</em> = -2 - √6
In the other case, we end up with the same numbers, but <em>a</em> and <em>b</em> are swapped.
Answer:
Fraction because .85 is less than 1
Step-by-step explanation:
B) 50 - c = 16; $34 spent on clothes
50 - c = 16
Subtract 16 from both sides.
34 - c = 0
Add c on both sides.
34 = c
So, they spent $34 on clothes.
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71% of 40 is 28.4
Divide 28.4 by 40:
Change the decimal to a percentage by multiplying by 100: