Answer:
Step-by-step explanation:
We can solve this in either of two ways. I'll do both.
<u>Mathematically</u>
3x + 2y = 8
5x + 2y = 12
Rewrite either equation to isolate y. I'll use
3x + 2y = 8
2y = 8 - 3x
y = (8-3x)/2
Now use this value of y in the other equation:
5x + 2y = 12
5x + 2((8-3x)/2) = 12
5x + (8 - 3x) = 12
2x = 4
x = 2
Use x=2 to find y:
y = (8-3x)/2
y = (8-3*(2))/2
y = (8-6)/2
y = 1
The point is (2,1)
<u>Graphically</u>
Graph the two equations and find the point they intersect. See attachment.
We obtain the same answer: (2,1)
Qualitative is data of worded nature. For example which movie genre do you prefer? comedy, horror, drama
Quantitative is data with a numerical nature such as a persons height or length of arm etc.
'Quality' and 'quantity' are easy ways to remember it :)
<span>Subtract u from 7, then divide v by the result</span>
v : (7 - u)
The general form of exponential function ⇒⇒
Where: a is the initial value and b is the rate
b > 1 ⇒⇒ exponential growth or exponential increase
b < 1 ⇒⇒ exponential decay or exponential decrease
Given: The initial population = 820
The annual rate = 23% = 0.23
The total ration between the adjacent years = 1+0.23 = 1.23
So, the exponential function to model this population is
After 3 years ⇒⇒⇒ x = 3
∴
≈ 1,526
The correct answer is: ; 1,526
Answer:
The actual price is 13.6 % lower than the expected price....
Step-by-step explanation:
Lets suppose the expected price = x
CPI = ( expected price ) : ( price in 1983 ) *100
219 = ( x : 12.95 ) *100
Divide both sides by 100.
x : 12.95 = 2.19
x =2.19*12.95
= $28.36 ( expected price )
p = ( 24.50*100 ) / 28.36
p= 2450/28.36
= 86.4 %
100 % - 86.4 % = 13.6 %
The actual price is 13.6 % lower than the expected price....
