8 and 5 multiply to 40 but subtract to 3.
Answer:
5) ![x=3,-1](https://tex.z-dn.net/?f=x%3D3%2C-1)
6) ![r=-6,-4](https://tex.z-dn.net/?f=r%3D-6%2C-4)
7) ![p=2,3](https://tex.z-dn.net/?f=p%3D2%2C3)
8) ![n=-4,8](https://tex.z-dn.net/?f=n%3D-4%2C8)
Step-by-step explanation:
5) ![(x-3)(x+1)=0](https://tex.z-dn.net/?f=%28x-3%29%28x%2B1%29%3D0)
substitute x for a number that will make the statement true.
6) ![(r+6)(r+4)=0](https://tex.z-dn.net/?f=%28r%2B6%29%28r%2B4%29%3D0)
substitute r for a number that will make the statement true.
7) ![(p-2)(p-3)=0](https://tex.z-dn.net/?f=%28p-2%29%28p-3%29%3D0)
substitute p for a number that will make the statement true.
8) ![(n+4)(n-8)=0](https://tex.z-dn.net/?f=%28n%2B4%29%28n-8%29%3D0)
substitute n for a number that will make the statement true.
Answer:
1. 495
2. 367
3. 1835
4. 1887
5. 2627
6. 1890
7. 1929
Step-by-step explanation:
1.
Smallest number in the N column: 33
Largest number in the B column: 15
33 * 15 = 495
2.
Sum of numbers in the I column:
27 + 23 + 19 + 30 + 29 = 128
495 - 128 = 367
3.
Highest number in the O column: 72
Lowest number in the O column: 67
72 - 67 = 5
367 * 5 = 1835
4.
Average of the numbers in the G column:
(50 + 51 + 54 + 52 + 53)/5 = 52
1835 + 52 = 1887
5.
Reversed digits in answer: 1887 -> 7881
First number in B column: 11
Second number in B column: 8
11 - 8 = 3
7881/3 = 2627
6.
Sums of the numbers in I, G, and O columns:
27 + 23 + 19 + 30 + 29 + 50 + 51 + 54 + 52 + 53 + 72 + 70 + 67 + 71 + 69
= 737
2627 - 737 = 1890
7.
First number in column G: 50
First number in column B: 11
1890 + 50 = 1940
1940 - 11 = 1929
Answer:
Each pack of chicken costs $8 and each pack of beef costs $9.24.
Step-by-step explanation:
This question can be solved using a system of equations:
I am going to say that:
x is the cost of each pack of chicken.
y is the cost of each pack of beef.
2 packs of chicken and 3 packs of beef for $42.50.
This means that ![2x + 3y = 42.50](https://tex.z-dn.net/?f=2x%20%2B%203y%20%3D%2042.50)
5 packs of chicken and 6 packs of beef for $94.25.
This means that ![5x + 6y = 94.25](https://tex.z-dn.net/?f=5x%20%2B%206y%20%3D%2094.25)
We have to solve the following system:
![2x + 3y = 42.50](https://tex.z-dn.net/?f=2x%20%2B%203y%20%3D%2042.50)
![5x + 6y = 94.25](https://tex.z-dn.net/?f=5x%20%2B%206y%20%3D%2094.25)
I will use the addition method, multiplying the first equation by -2, and adding to the second
![-4x - 6y = -85](https://tex.z-dn.net/?f=-4x%20-%206y%20%3D%20-85)
![5x + 6y = 94.25](https://tex.z-dn.net/?f=5x%20%2B%206y%20%3D%2094.25)
-4x + 5x - 6y + 6y = -85 + 94.24
x = 9.24.
And
![2x + 3y = 42.50](https://tex.z-dn.net/?f=2x%20%2B%203y%20%3D%2042.50)
![3y = 42.50 - 2x](https://tex.z-dn.net/?f=3y%20%3D%2042.50%20-%202x)
![y = \frac{42.50 - 2*9.24}{3}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7B42.50%20-%202%2A9.24%7D%7B3%7D)
![y = 8](https://tex.z-dn.net/?f=y%20%3D%208)
Each pack of chicken costs $8 and each pack of beef costs $9.24.
Answer:
dy/dx = x=-1
Step-by-step explanation:
by use of intergration to get the values of yaxis and x axis,,the values are -2, -4,