Essentially, the rule goes as so: odd + odd = even, even + even = even.
Although that may not be the answer you're looking for, it is a math rule that is never debunked and essentially the premises for why you get an even sum practically always depending on the numbers.
Hope this helps!
Answer:
<h2>12 </h2>
Step-by-step explanation:
<h2>2.5x = 30</h2><h2>x = 30 / 2.5</h2><h2>x = 12</h2>
Answer:
4
Step-by-step explanation:
If the gas tank holds 5 liters and you have 20 liters, then 20/5 = 4 times it will fill it up.
Just set it equal to zero and solve using the quadratic equation.