Answer:67
Step-by-step explanation: cause tghe number is not a number
Call x is the number of girls in the classroom.
12/120 = 25/x
x = 120*25/12
x=250
Answer 250 girsl
SOLUTIONS
Given: Assume y is the population
![\begin{gathered} t=0=1960,y=14030 \\ t=1=1961,y=14060 \\ so\text{ b = 14000} \\ so\text{ k = 30} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20t%3D0%3D1960%2Cy%3D14030%20%5C%5C%20t%3D1%3D1961%2Cy%3D14060%20%5C%5C%20so%5Ctext%7B%20b%20%3D%2014000%7D%20%5C%5C%20so%5Ctext%7B%20k%20%3D%2030%7D%20%5Cend%7Bgathered%7D)
The town grow at the rate of 30 people per year.
![y=kt+14000](https://tex.z-dn.net/?f=y%3Dkt%2B14000)
![y=30t+14000](https://tex.z-dn.net/?f=y%3D30t%2B14000)
(A) The population predicted to be in 2030 will be
![\begin{gathered} 2030-1960=70 \\ y=30k+14000 \\ y=30(70)+14000 \\ y=2100+14000 \\ y=16100people \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%202030-1960%3D70%20%5C%5C%20y%3D30k%2B14000%20%5C%5C%20y%3D30%2870%29%2B14000%20%5C%5C%20y%3D2100%2B14000%20%5C%5C%20y%3D16100people%20%5Cend%7Bgathered%7D)
(B) so when y = 15000, find t
A. (1,4)
EXPALINATION :
IF WE WRITE THE VALUE x = -1 AND y = 4
THEN, y= -8x - 4
4= -8×-1-4
4= 8-4
AND SECOND EQUATION IS : y = x+5
y = -1 +5
y = 4
hence, solved and explained
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