Answer:
g(f): x -> 2(x-7)=2x-14 , g(f)(-1)=2*(-1)-14=-16
Step-by-step explanation:
The answer is C. 1080. i got this by multiplying 180 by 6.
You solve this by plugging one equation into the other. Usually you have to rewrite one equation to make this work. In this case I choose to rewrite y-4x=0 as y=4x.
After plugging it into the second, you get:
3x + 6*4x = 9 => 27x = 9 => x=1/3
Putting this solution back into y=4x gives us y=4/3
Answer is D:
e + 5 = 3e - 11
2e = 16
e = 8
Ella is 8 years old
Jamie is 8+5 = 13 years old
