There are 40 animals at a petting zoo.
Adult goats→x Child goats→a
Adult rabbits→y Child rabbits→b
<span>
There are twice as many adult rabbits as adult goats: y=2x
</span>There are three times as many child goats as adult goats: a=3x<span> There are exactly as many adult rabbits as there are child rabbits: b=y=2x
x+y+a+b=40⇒x+2x+3x+2x=40
8x=40⇒x=40/8⇒x=5
There are 5 </span><span> adult goats are in the petting zoo.</span>
Answer:
Step-by-step explanation:
The standard form of a circle is
If we are given x and y as 0 and 5 respectively, and we are also told that the center is (0, 0), our h and k are both 0. Filling in x, y, h, and k we can find the radius. So let's do that:
and
so
Our circle's equation is
Since the point in question, (4, 4), lies in the first quadrant, we will concentrate on that quadrant only. To fall within the circle, we can set up an inequality and test the point (4, 4). If it lies ON the circle then the equality would be true. Let's try that first:
Obviously, 16 + 16 does not equal 25, so that point (4, 4) does not lie ON the circle. In fact from that statement alone, we can determine that the point lies outside the circle because
If the inequality < were true then the point would lie inside.
Answer:
1 a=-5 b=52 c=-52
it is the required answer
Assuming you are solving for x
do the opposite of PEMDAS. Isolate the x. Because of equal sign, what you do to one side, you do to the other.
x/5 + 9 = 4
x/5 + 9 (-9) = 4 (-9)
x/5 = 4 - 9
x/5 = -5
x/5(5) = -5(5)
x = -5(5)
x = -25
-25 is your answer for x
hope this helps