The process described here is called "Evaluating" the expression... if that's what you're looking for?
= 4
= -6
HOPE THIS HELP ^_^
Answer:
30
Step-by-step explanation:
x + 2y = 5 /* (-1)
3x + 2y = 9
__________
-x - 2y = -5
3x + 2y = 9
add these two equations
_______________
2x = 4
x = 4/2 = 2$ for a hotdog
2y = 5 - x = 5 - 2 = 3 => y = 3/2 = 1.5$ for a hamburger
Answer:
Compounds contains atoms from different elements. The elements are bounded chemically. H20, stands from a hydrogen atom and two oxygen atoms bonded together. These are two different elements and therefore the combination of H20 fits the definition for a compound.
