Answer:
The least common denominator would be 28.
Mutiply by 7 for 3/4.
Mutiply by 2 for 5/14.
3(7)/4(7)= 21/28, 5(2)/14(2)= 10/28
The change as a percentage is 6.7 %
<h3>
How to calculate the percentage change ?</h3>
The price of the building in the year 2021 is $4,200,00
The price of the building in 2021 is $4,500,000
Therefore the percentage change can be calculated as follows
= 4,500,000 - 4,200,000/4,500,000 × 100
= 300,000/4,500,000 × 100
= 0.066 × 100
= 6.7 %
Hence the percentage change is 6.7%
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Answer:
First one is 35,338
Second one is 74,322
Step-by-step explanation:
Answer:
14.4
Step-by-step explanation:
It makes the most sense.
y = (x-5) (x+6)
y = x+6
-- Clear the parentheses in the first one (multiply it out):
y = x² + x - 30
-- Look at the two equations at the same time.
y = x² + x - 30
y = x + 6
Two quantities that are both equal to the same thing (y)
must be equal to each other, so you can write
x² + x - 30 = x + 6
and THAT should be easy to solve.
-- Subtract' x ' from each side:
x² - 30 = 6
-- Add 30 to each side:
x² = 36
-- Square root each side:
x = 6
and
x = -6 .
Those are the x-coordinates of the two solutions to the
original system of equations. We don't even care about
their y-coordinates, or where exactly they are on the graph.
All we need is the x-coordinate of a the mid-point of a line
segment between them.
Do you remember how to find the mid-point of a line segment ?
-- Its x-coordinate is the average of the x-coordinates of the end points.
-- Its y-coordinate is the average of the y-coordinates of the end points.
AND ...
The average of +6 and -6 is zero !
So ... the midpoint of the two solutions is on the y-axis.
Its x-coordinate is zero.
(Choice B)
