Always add them all around and then divide the two and you should get the correct answer
2x+8y=9
4x+16y=18
this is because the second equation is the first equation, but multiplied by 2. if one side is multiplied by 2, so is the other
the answer is 18
Answer:
99.5
Step-by-step explanation:
398 ÷ 4
Answer:
Rational!
Step-by-step explanation:
The decimal is terminating so this is rational.
