Hello from MrBillDoesMath
Answer: 12, 9
Discussion:
Let x be the first number and y the second number. The form the problem statement:
x + y = 21
x - y = 3
Add the two equations. This gives:
(x + x ) + ( y-y) = 21 + 3 =>
2x + 0 = 24 =>
x = 12
Since x -y =3, substituting in the value of x gives, 12 - y = 3 so y = 9
Thank you,
Mr. B
Answer:
There is no explanation to this, idk how to answer this for you.
Step-by-step explanation:
Answer:
yes i do... give me a code
Step-by-step explanation:
Answer:
The answer is 14.46%
Step-by-step explanation:
Given is : A culture containing 20 bacteria multiplies to 117,360 in one minute.
Let A0 be initial bacteria count = 20
Let A be final bacteria count = 117360
Time = 60 seconds
R = rate
Formula to be used = ![A=A0e^{rt}](https://tex.z-dn.net/?f=A%3DA0e%5E%7Brt%7D)
![117360=20e^{r*60}](https://tex.z-dn.net/?f=117360%3D20e%5E%7Br%2A60%7D)
![5868=e^{60r}](https://tex.z-dn.net/?f=5868%3De%5E%7B60r%7D)
Taking log function (ln) on both sides.
![ln(5868)=ln(e^{60r} )](https://tex.z-dn.net/?f=ln%285868%29%3Dln%28e%5E%7B60r%7D%20%29)
![60r=8.677](https://tex.z-dn.net/?f=60r%3D8.677)
Hence, r = 0.1446 and in percentage it is 14.46%