Answer:
2x - 5 = 7
2x -5 + 5 = 7 + 5
2x = 12
2/2x = 12/2
x = 6
Step-by-step explanation:
Answer:
0.34 is the unit cost.
Step-by-step explanation:
I will be waiting for brainliest...
Answer:
368m
Step-by-step explanation:
16 x 20 = 320
8 x 12 x 1/2 = 48
Add them together and get 368
Answer:
73
Step-by-step explanation:
48^2 + 55^2 = 5329
square root of 5329 is 73
You have two equations.
since the second is already isolated, sub in x-4 for every y in equation 1 so that
![x^{2} - 4 [(x-4)^{2}] =16 ](https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20-%204%20%5B%28x-4%29%5E%7B2%7D%5D%20%3D16%0A%20)
expand, collect like terms, factor to find x, then plug x value back into original equation to find y