The easiest way it to solve it.
You have
Thus
You have
Thus
When the consumer price index (cpi) decreases from 250 to 150, prices decrease by 100%. True or false?
1 answer:
Answer with explanation:
Original Price = $250
Decreased Price = $ 150
Reduction = Original Price - Decreased Price
= $ 250 -$ 150
= $ 100
Let reduction Percentage =x %
% Reduction
x=40%
⇒40% ≠ 100%
→→→When the consumer price index (cpi) decreases from 250 to 150, prices decrease by 100% , is False Statement.
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Answer:
As per the statement:
The path that the object takes as it falls to the ground can be modeled by:
h =-16t^2 + 80t + 300
where
h is the height of the objects and
t is the time (in seconds)
At t = 0 , h = 300 ft
When the objects hit the ground, h = 0
then;
-16t^2+80t+300=0
For a quadratic equation: ax^2+bx+c=0 ......[1]
the solution for the equation is given by:
On comparing the given equation with [1] we have;
a = -16 ,b = 80 and c = 300
then;
Simplify:
= -2.5 sec and
= 7.5 sec
Time can't be in negative;
therefore, the time it took the object to hit the ground is 7.5 sec
Answer:
The approximate percentage is 25%.
Step-by-step explanation:
The initial population was = 12089 rounded off to 12000.
The final population is = 15025 rounded off to 15000.
Change in population =
So, the approximate percent increase is =
= 25%.