One ratio is 30:40 since 15 times 2 is 30 and 20 times 2 is 40.
<span>8 - 2b = -2/3(12b + 6)
8 - 2b = -8b -4
8 + 4 = -8b + 2b
12 = -6b
b = -12/6
b = -2
So, your final answer is b = -2</span>
Answer:
Therefore, ( 1 , 1 ) is the Solution to the Given Equations
Step-by-step explanation:
Given:
..............Equation ( 1 )
..............Equation ( 2 )
To Find:
x = ?
y = ?
Solution:
..............Equation ( 1 )
..............Equation ( 2 )
Substituting equation 1 in equation 2 we get
![5x-4(2x-1)=1\\applying\ distributive\ property\ we\ get\\5x-8x+4=1\\\\-3x=1-4=-3\\\\x=\frac{-3}{-3}=1\\ \therefore x = 1\\](https://tex.z-dn.net/?f=5x-4%282x-1%29%3D1%5C%5Capplying%5C%20distributive%5C%20property%5C%20we%5C%20get%5C%5C5x-8x%2B4%3D1%5C%5C%5C%5C-3x%3D1-4%3D-3%5C%5C%5C%5Cx%3D%5Cfrac%7B-3%7D%7B-3%7D%3D1%5C%5C%20%5Ctherefore%20x%20%3D%201%5C%5C)
Substituting 'x' in Equation ( 1 ) we get
![y=2\times 1-1\\\\y=1\\\\\therefore y =1\\](https://tex.z-dn.net/?f=y%3D2%5Ctimes%201-1%5C%5C%5C%5Cy%3D1%5C%5C%5C%5C%5Ctherefore%20y%20%3D1%5C%5C)
Therefore, ( 1 , 1 ) is the Solution to the Given Equations
The fraction of the plants that have flowers in the set given is calculated by dividing the number of plants with flowers by the total number of plants.
f = plants with flowers / total number of plants
From the given,
f = 4 / 5
f = 0.8
Thus, the answer to this item is the first choice.
Answer:
its 7x+3=x-3
Step-by-step explanation:
it is