Write the equations:
![2.9s+4.7h=6076 \\ h= 4s](https://tex.z-dn.net/?f=2.9s%2B4.7h%3D6076%0A%20%5C%5C%20h%3D%204s)
Substitute for h:
![2.9s+4.7(4s)=6076](https://tex.z-dn.net/?f=2.9s%2B4.7%284s%29%3D6076)
Solve for s:
![2.9s+4.7(4s)=6076 \\ 2.9s+18.8s=6076 \\ 21.7s=6076 \\ s=280](https://tex.z-dn.net/?f=2.9s%2B4.7%284s%29%3D6076%20%5C%5C%202.9s%2B18.8s%3D6076%20%5C%5C%2021.7s%3D6076%20%5C%5C%20s%3D280)
There were 280 downloads of the standard version. There were 1120 downloads of the high-quality version.
Formula for volume of sphere V = 4/3 (Pi) r^3, where Pi ~ 3.14 and r is the radius = 7.
Therefore V = 4/3 * 3.14 * 7^3
= 4/3 * 3.14 * 343
= 4/3 * 1077.02
= 1,436.02667 cubic units
Answer:
13 students
Step-by-step explanation:
4 plus 9 = 13
Jon pays $40 and $15. This means that he pays a total of $55. You multiply the total cost by 0.05, which is $2.75. To convert a number to a percentage, multiply it by 100. So, 0.05 as a percent is equal to 5%.
His sales tax will be $2.75.
Answer:
x = 27
Step-by-step explanation:
x/9 = 3
Multiply each side by 9
x/9 * 9 = 3*9
x = 27