Answer:
The three bags for 92.50 pounds (offer B)
Step-by-step explanation:
Offer A:
![\frac{35}{2 \times 25} = \frac{35}{50} = .7](https://tex.z-dn.net/?f=%20%5Cfrac%7B35%7D%7B2%20%5Ctimes%2025%7D%20%20%3D%20%20%5Cfrac%7B35%7D%7B50%7D%20%20%3D%20.7)
Offer B:
![\frac{92.50}{3 \times 50} = \frac{92.50}{150} = .617](https://tex.z-dn.net/?f=%20%5Cfrac%7B92.50%7D%7B3%20%5Ctimes%2050%7D%20%20%3D%20%20%5Cfrac%7B92.50%7D%7B150%7D%20%20%3D%20.617)
Offer B has the lower unit price.
Answer:
None of the above.
Step-by-step explanation:
Let us check each of the answer choices one bye one.
Choice A: ![y+41=(31*2)+77x](https://tex.z-dn.net/?f=y%2B41%3D%2831%2A2%29%2B77x)
solving for y we get:
![y=77x+21,](https://tex.z-dn.net/?f=y%3D77x%2B21%2C)
which is not equal to our function h(x).
Choice B:
.
This gives ![y=358+77x,](https://tex.z-dn.net/?f=y%3D358%2B77x%2C)
which is not equal to our function h(x).
Choice C:
and
.
The first expression does not contain y, thus it is not equivalent to h(x). The second equation already gives the value of y , and we see that it is not equal to h(x).
Therefore we conclude that none of the choices given are correct.
Divide 4 on both sides and u= 6.4/4 which the answer is equal to 1.6
Answer:
About 72%
Step-by-step explanation:
All you have to do is divide the number of children who traveled in third class (79) by the total number of children (109)
79/109=.724770642 OR 72%
Answer:
The lines are perpendicular
Step-by-step explanation:
we have
![2x+y=4](https://tex.z-dn.net/?f=2x%2By%3D4)
isolate the variable y
----> equation A
The slope of the line A is ![m=-2](https://tex.z-dn.net/?f=m%3D-2)
-----> equation B
The slope of the line B is ![m=\frac{1}{2}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B1%7D%7B2%7D)
Remember that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
In this problem
The slopes of line A and line B are opposite reciprocal
therefore
The lines are perpendicular