The greater number is 21, this is correct since 21 + 3 is 24, and 21 - 3 is 18. Thus, it fulfills all necessary requirements
Answer:
7.5 inches
Step-by-step explanation:
take the 5 away from the 20, you have 15 inches left. Isosceles triangles have two equal sides; 15 divided into two equally is 7.5
The answer would be 112.5 plz give me thanks and full rating PLZZZZZZ
Answer:
There is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.
Step-by-step explanation:
First, we need to calculate the volume of each balloon by considering the balloons as a sphere:
![V = \frac{4}{3}\pi r^{3}](https://tex.z-dn.net/?f=%20V%20%3D%20%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E%7B3%7D%20)
Where:
r: is the radius = 0.4 meters
![V = \frac{4}{3}\pi r^{3} = \frac{4}{3}\pi (0.4 m)^{3} = 0.27 m^{3}](https://tex.z-dn.net/?f=%20V%20%3D%20%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E%7B3%7D%20%3D%20%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%280.4%20m%29%5E%7B3%7D%20%3D%200.27%20m%5E%7B3%7D%20)
Knowing that 1 m³ of helium is able to lift about 1 kg, that Mr. Schordine weights 84 kg, and that each ballon has 0.27 m³ of helium, the number of balloons needed are:
Therefore, there is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.
I hope it helps you!