Answer:
option c
Step-by-step explanation:
explaination is in pic below
The awnser is the simplified stystem is the arbitrary solution of the original system of equations
Answer: about 16
Step-by-step explanation:
See picture for more information
Answer:
Step-by-step explanation:
Since the whole right side of that triangle is equal to 28 and the lower portion is 21, then we know the upper portion is 7. Set up a proportion using those sides and the fact that the 2 triangles are similar:
and cross multiply to get
21x = 126 and
x = 6