From stock A
The price increases as time passes till they both became constant eventually the price decreases as time passes
From stock B
The price is low in the beginning however as time passes it increases till it became constant
A. 9
B. 24
C. 6
D. 16
Step-by-step explanation:
Given ratios are;
A. 2 : 3 = 6 : x
Product of mean = Product of extreme
![6*3=2*x\\18=2x\\2x=18](https://tex.z-dn.net/?f=6%2A3%3D2%2Ax%5C%5C18%3D2x%5C%5C2x%3D18)
Dividing both sides by 2
![\frac{2x}{2}=\frac{18}{2}\\x=9](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7B2%7D%3D%5Cfrac%7B18%7D%7B2%7D%5C%5Cx%3D9)
B. 4 : 7 = x : 42
Product of mean = Product of extreme
![7x=168](https://tex.z-dn.net/?f=7x%3D168)
Dividing both sides by 7
![\frac{7x}{7}=\frac{168}{7}\\x=24](https://tex.z-dn.net/?f=%5Cfrac%7B7x%7D%7B7%7D%3D%5Cfrac%7B168%7D%7B7%7D%5C%5Cx%3D24)
C. 2x : 48 = 3 : 12
Product of extreme = Product of mean
![2x*12=48*3\\24x=144](https://tex.z-dn.net/?f=2x%2A12%3D48%2A3%5C%5C24x%3D144)
Dividing both sides by 24
![\frac{24x}{24}=\frac{144}{24}\\x=6](https://tex.z-dn.net/?f=%5Cfrac%7B24x%7D%7B24%7D%3D%5Cfrac%7B144%7D%7B24%7D%5C%5Cx%3D6)
D. 12 : 15 = x : 20
Product of mean = Product of extreme
![15*x=12*20\\15x=240](https://tex.z-dn.net/?f=15%2Ax%3D12%2A20%5C%5C15x%3D240)
Dividing both sides by 15
![\frac{15x}{15}=\frac{240}{15}\\x=16](https://tex.z-dn.net/?f=%5Cfrac%7B15x%7D%7B15%7D%3D%5Cfrac%7B240%7D%7B15%7D%5C%5Cx%3D16)
Answer:
4
Step-by-step explanation:
We are required to find the cost of each cherry tree and rose bushes.
The cost of each cherry tree, x is $8 and the cost of each rose bushes, y is $12
let
<em>cost of each cherry tree = x</em>
<em>cost of each cherry tree = xcost of each rose bushes = y</em>
The equation:
7x + 11y = 188 (1)
13x + 11y = 236 (2)
Subtract (1) from (2) to eliminate y
13x - 7x = 236 - 188
6x = 48
divide both sides by 6
x = 48 / 6
x = 8
substitute x = 8 into (1)
7x + 11y = 188 (1)
7(8) + 11y = 188
56 + 11y = 188
11y = 188 - 56
11y = 132
divide both sides by 11
y = 132 / 11
y = 12
Therefore, the cost of each cherry tree, x is $8 and the cost of each rose bushes, y is $12
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