Answer:
x= -2 y = 4 z = 1/3 solve by using gauss elimination or Cramer's rule, or matrix inversion method or row equivalent matrix method
M is correct. Because straight line is 180 degrees
Answer:
56
Step-by-step explanation:
Basically, 3 x 8 is equal to 24, and Zoe recieved £24. So, if 24/3 is equal to 8, and 3 x 8 is equal to 24, 7 x 8 is equal to 56, by checking, 56/8 is equal to 7.
The answer is D because his money depends on how many hours he works.
Usually the easiest way to solve this is by using a calculator. Of course only if your teacher allows you too.