Answer:
what is the question and the choices and ill answer this
Step-by-step explanation:
Answer:
what is the substitution method???
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
The proportion equal to a/b = c/d is A.) A/C = B/D
We will know if a proportion is equivalent when its cross products are equal.
a/b = c/d where ad = bc
since ad = bc, a/c = b/d