4x+5y=7
y=3x+9
1) 4x+5(3x+9)=7 2) y=3(-2)+9
y= -6 +9
4x+15x+45=7 y=3
19x+45=7
19x= -38
x= -2
x is -2 and y is 3
Answer: 1)
a combination
b permutation
c permutation
d permutation
2)
B coz 6 and 11 is the only combination which can have 462 possibilities as they r both factors of 462
Answer:
m = 3 , n = 4
Step-by-step explanation:
<u>Using Section Formula.</u>
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![Here (x_1 , y_ 1 ) = ( -7 , 1 ) \ and \ (x_ 2 , y _ 2 ) = (m , 6)\\\\ratio\ a:b = 3 : 2\\\\Therefore, P (x, y) \\\\x = \frac{3m + (2\times -7)}{5} \ \ \ \ \ \ \ \ \ \ \ [ \ x = -1 \ ] \\\\-1 = \frac{3m - 14}{5}\\\\- 5 = 3m - 14\\\\-5 + 14 = 3m\\\\9 = 3m \\\\m = 3](https://tex.z-dn.net/?f=Here%20%28x_1%20%2C%20y_%201%20%29%20%3D%20%28%20-7%20%2C%201%20%29%20%5C%20and%20%5C%20%28x_%202%20%2C%20y%20_%202%20%29%20%3D%20%28m%20%2C%206%29%5C%5C%5C%5Cratio%5C%20a%3Ab%20%20%3D%203%20%3A%202%5C%5C%5C%5CTherefore%2C%20P%20%28x%2C%20y%29%20%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B3m%20%2B%20%282%5Ctimes%20-7%29%7D%7B5%7D%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5B%20%5C%20x%20%3D%20%20-1%20%5C%20%5D%20%5C%5C%5C%5C-1%20%3D%20%5Cfrac%7B3m%20-%2014%7D%7B5%7D%5C%5C%5C%5C-%205%20%3D%203m%20-%2014%5C%5C%5C%5C-5%20%2B%2014%20%3D%203m%5C%5C%5C%5C9%20%3D%203m%20%5C%5C%5C%5Cm%20%3D%203)
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So first you would put these over a common denominator which is 96. You get this by multiplying by 9 and what you do to the denominator you must do to the numerator so you then get 45/96 and 63/96. Pelicans=45/96. Woodpeckers=63/96
Answer:
754.2
Step-by-step explanation:
First of all, we cannot solve the question the way it is. We need to make 0.1 into a whole number. If we move the decimal to the right, once, then it will become the number one.
Of course, what we do to one, we have to do to the other. We move the decimal to 75.42 to the right one. Now it is 754.2
That looks like the answer. The reason is because we are now dividing by one. Something divided by one, will always be itself.
Now we have the answer of 754.2.
