Answer:
❤️❤️ your answer is either 1 or 9 and i show the work for when you get the answer 1 and the work for haw you get the answer 9 if there is something wrong with my problem just let me know thanks ❤️❤️
Step-by-step explanation:
3x+4(8)=5x+2(7)
3x+32=5x+14
-14 -14
3x+18=5x
-3x -3x
18=2x
x=9
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3x+4=5x+2
-2 -2
3x+2=5x
-3x -3x
2=2x
x=1
Answer:
B=7x
Step-by-step explanation:
5(x+2)+2(x-5)
5x+10+2x-10
since 10-10=0, it just won't show, there's no need to say "0"
5x+2x+10-10
7x+0
so just
7x
Answer: a) 800
b) ![y=100(2)^t](https://tex.z-dn.net/?f=y%3D100%282%29%5Et)
Step-by-step explanation:
The exponential growth function is represented by :-
, where A is initial value , b is the multiplicative rate of change and t is the time period.
Given : A bacteria culture starts with 100 bacteria and doubles in size every half hour.
i.e. A = 100 and b=2
Then, the exponential growth function to find the number of bacteris after t hours :_
![y=100(2)^t](https://tex.z-dn.net/?f=y%3D100%282%29%5Et)
At x=3
![y=100(2)^3=800](https://tex.z-dn.net/?f=y%3D100%282%29%5E3%3D800)
Hence, the there are 800 bacteria after 3 hours.