Answer: 
Step-by-step explanation:
Given
The present population of bacteria is 
It doubles in every 238 minutes
So, after 238 minutes it is

After another 238 minutes i.e. 476 minutes from starting, they becomes

45.
12/18 = 8/x <=> 2/3 = 8/x <=> x = (3*8)/2 = 12;
Answer:
4x= 40
Step-by-step explanation:
40/4 = 10
how long is |MN| when you measure it and do you know anything about the length of |NO| and |OP|?
assuming |MN|= 7.7 ; |NO|= 4.7 ; |MO|= 5.5:
o²= m²+n²
= 4.7²+5.5²
=52.34
o=V52.34
≈7.23
Answer:
x= -1
Step-by-step explanation:
6x-18+14x+38
group= 20x+20
set equal to 0
20x+20=0
-20 -20
20x/20= -20/20
x= -1