Answer:
117
Step-by-step explanation:
13*9=117
If we use similar triangles ( as shown in the attachment ) we will see that the line CM is also 1/4 *( yC-yD)= 1/4*(2+2) = 1/4*4 =1
Answer: y-value of that point is A)
y=1.
Answer:
the system of equation has infinite solution
Step-by-step explanation:
, ![25x_1 + 5x_2 = 0](https://tex.z-dn.net/?f=25x_1%20%2B%205x_2%20%3D%200)
Solve the first equation for x_2
Subtract 5x1 on both sides
![5x_1 + x_2 = 0](https://tex.z-dn.net/?f=5x_1%20%2B%20x_2%20%3D%200)
![x_2 =-5x_1](https://tex.z-dn.net/?f=x_2%20%3D-5x_1)
Now substitute -5x1 on second equation
![25x_1 + 5x_2 = 0](https://tex.z-dn.net/?f=25x_1%20%2B%205x_2%20%3D%200)
![25x_1 + 5(-5x_1)= 0](https://tex.z-dn.net/?f=25x_1%20%2B%205%28-5x_1%29%3D%200)
![25x_1-25x_1= 0](https://tex.z-dn.net/?f=25x_1-25x_1%3D%200)
0=0
So the system of equation has infinite solution
Answer:
$2.24 / lb
Step-by-step explanation:
$1 = 100 cents
16 oz = 1 lb
![14 cents/oz *\frac{1 dollar}{100 cents}*\frac{16oz}{1lb}](https://tex.z-dn.net/?f=14%20cents%2Foz%20%2A%5Cfrac%7B1%20dollar%7D%7B100%20cents%7D%2A%5Cfrac%7B16oz%7D%7B1lb%7D)
Simplified,
![\frac{14 *16}{100}](https://tex.z-dn.net/?f=%5Cfrac%7B14%20%2A16%7D%7B100%7D)
= $2.24/ lb
20x4=80
i am assuming this is correct this is how i learned just take all numbers in equation and multiply by each other