Answer:
60 males in the aquarium
Step-by-step explanation:
It is a ratio problem. The ratio of female goldfish to male goldrish is 6:10. If you divide 216 (females) by 6 (females), you get 36. If you multiply 10 times 6, you get 60. So, the ratio turns into 216: 60. So, there are 60 males in the aquarium.
Answer:
![Cranberry:Apple:Orange = 7:5:8](https://tex.z-dn.net/?f=Cranberry%3AApple%3AOrange%20%3D%207%3A5%3A8)
Step-by-step explanation:
Given
![Apple = 1/4](https://tex.z-dn.net/?f=Apple%20%3D%201%2F4)
![Orange = 2/5](https://tex.z-dn.net/?f=Orange%20%3D%202%2F5)
Required
Determine the ratio of Cranberry to Apple to Orange
First, we calculate the fraction of Cranberry using:
![Cranberry + Apple + Orange = 1](https://tex.z-dn.net/?f=Cranberry%20%2B%20Apple%20%2B%20Orange%20%3D%201)
Substitute values for Apple and Orange
![Cranberry + 1/4+ 2/5= 1](https://tex.z-dn.net/?f=Cranberry%20%2B%201%2F4%2B%202%2F5%3D%201)
Collect Like Terms
![Cranberry = 1- 1/4- 2/5](https://tex.z-dn.net/?f=Cranberry%20%3D%201-%201%2F4-%202%2F5)
Take LCM
![Cranberry = \frac{20 - 5 - 8}{20}](https://tex.z-dn.net/?f=Cranberry%20%3D%20%5Cfrac%7B20%20-%205%20-%208%7D%7B20%7D)
![Cranberry = \frac{7}{20}](https://tex.z-dn.net/?f=Cranberry%20%3D%20%5Cfrac%7B7%7D%7B20%7D)
The ratio is then represented as:
![Cranberry:Apple:Orange = 7/20:1/4:2/5](https://tex.z-dn.net/?f=Cranberry%3AApple%3AOrange%20%3D%207%2F20%3A1%2F4%3A2%2F5)
Multiply through by 20
![Cranberry:Apple:Orange = 20(7/20:1/4:2/5)](https://tex.z-dn.net/?f=Cranberry%3AApple%3AOrange%20%3D%2020%287%2F20%3A1%2F4%3A2%2F5%29)
![Cranberry:Apple:Orange = 20*7/20:20*1/4:20*2/5](https://tex.z-dn.net/?f=Cranberry%3AApple%3AOrange%20%3D%2020%2A7%2F20%3A20%2A1%2F4%3A20%2A2%2F5)
![Cranberry:Apple:Orange = 7:5:8](https://tex.z-dn.net/?f=Cranberry%3AApple%3AOrange%20%3D%207%3A5%3A8)
So if there are twenty children and 6 have an average age of five, you could say their total age together is 30 years. The others (20-6) have an age of 8.
30+ (20-6)*8 = total age of every child at the library. From there divide by the number of children.
Answer: -19r + 31.7s i think
Step-by-step explanation: