a) 13000 divided by 2 is 6500, which was the population 10 years ago. 6500 divided by 2 is 3250, which was the population 20 years ago. 3250 divided by 2 is 1625, which was the bird population 30 years ago. 25 is halfway between 20 and 30, and 2437.5 is halfway between 3250 and 1625, so I would say that 2437.5 is the answer.
b) Well 13000 times 2 gives you 26000, which would be in ten ears, and halfway between 13000 and 26000 is 19500, which gives you the bird population in five years. :-)
Answer:
C.4x-3y=36
Step-by-step explanation:
we are given
![\frac{2}{3} x-\frac{1}{2}y=6](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%20x-%5Cfrac%7B1%7D%7B2%7Dy%3D6)
We can see that all options do not have denominator
So, firstly we will get rid of denominators
we know that LCD of 2 and 3 is 6
so, we will multiply both sides by 6
and we get
![6\times \frac{2}{3} x-6\times\frac{1}{2}y=6\times 6](https://tex.z-dn.net/?f=6%5Ctimes%20%5Cfrac%7B2%7D%7B3%7D%20x-6%5Ctimes%5Cfrac%7B1%7D%7B2%7Dy%3D6%5Ctimes%206)
now, we can simplify it
![4x-3y=36](https://tex.z-dn.net/?f=4x-3y%3D36)
so,
Option-C
<span>The answers are either:
x=<span>2+<span><span><span>√15</span><span> or </span></span>x</span></span></span>=<span>2−<span>√<span>15
Hope this helps!</span></span></span>
I'm not exactly sure but I really want to say 1,6
Answer:
at 8 pm the temperature will be -9 degrees. and at midnight the temperature will be negitive twenty one(-21) degrees
Step-by-step explanation:
the start time is 12 pm and finish is 12 am and every hour your going to subtract 3 from the given degree so 15-3= 12 , 12-3=9 ect.