Answer:
20cm squared
Step-by-step explanation:
Answer:
We can estimate a population of 500 birds.
Step-by-step explanation:
We can estimate the total bird population using a rule of three with the information given:
If we find 5 birds with the foot band among 100 birds captured, how many birds there are in total if inicially we put foot bands in 25 birds?
5 birds with foot band -> 100 birds captured
25 birds with foot band -> X total birds
X * 5 = 25 * 100
X = 25 * 100 / 5 = 500 birds
We can estimate a population of 500 birds.
Answer: Pay 250 per month until it’s paid off
Let's assume
number of child tickets sold on saturday is x
number of adult tickets sold on saturday is y
On saturday, twice as many adult tickets as child tickets were sold
so, we get
![y=2x](https://tex.z-dn.net/?f=y%3D2x)
child admission is $6.30 and adult admission is $9.60
a total sales of $535.50
we get
![6.30x+9.60y=535.50](https://tex.z-dn.net/?f=6.30x%2B9.60y%3D535.50)
now, we can plug y=2x
![6.30x+9.60*2x=535.50](https://tex.z-dn.net/?f=6.30x%2B9.60%2A2x%3D535.50)
now, we can solve for x
![25.5x=535.5](https://tex.z-dn.net/?f=25.5x%3D535.5)
![x=21](https://tex.z-dn.net/?f=x%3D21)
now, we can find y
![y=2*21](https://tex.z-dn.net/?f=y%3D2%2A21)
![y=42](https://tex.z-dn.net/?f=y%3D42)
so,
number of child tickets sold on saturday is 21
number of adult tickets sold on saturday is 42.........Answer
33 +4x = 513
4x = 480 (x = 480/4: x = 120)
Answer
Step 2 Divide each side by 4