<span>make both numbers fractions then divide them as fractions and then divide the numerator by the denominator and get your answer.</span>
Answer:
For 1 there is causationand there is correlation because they found that if people have a higher income, they will buy a more expensive plan so one cause another
the second question, there is no correlation because it doesn’t matter how many samples they provide, people still buy the same amount
Answer:
Step-by-step explanation:
For mixture problems, it is convenient to define a variable to represent the amount of the greatest contributor. Let x represent the amount of 22% solution in the mix. Then 4.8-x is the amount of 10% solution.
The amount of alcohol in the mix is ...
0.22x +0.10(4.8-x) = 0.12(4.8)
Eliminating parentheses, we have ...
0.22x -0.10x +0.10(4.8) = 0.12(4.8)
Subtracting (0.10)(4.8) and combining x-terms gives ...
0.12x = 0.02(4.8)
x = (0.02/0.12)(4.8) = 0.8 . . . . . divide by the x-coefficient
The scientist needs 0.8 L of 22% solution and 4.0 L of 10% solution.
The area of the rectangle is the product of its base and height
The height of the rectangle is 4x - 2 units
<h3>How to determine the height?</h3>
The given parameters are:
Area = 4x^2 - 2x
Base = x
The area of the rectangle is:
Area = Base * Height
This gives
4x^2 - 2x = x * Height
Divide through by x
4x - 2 = Height
Rewrite as:
Height = 4x - 2
Hence, the height of the rectangle is 4x - 2 units
Read more about areas at:
brainly.com/question/24487155
Answer:
Step-by-step explanation:
(7+4)/2 = 11/2 = 5.5
(1-1)/2 = 0/2 = 0
(5.5, 0)
answer is C