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zvonat [6]
3 years ago
8

19=8-7x-3 PLEASE HELP HELP NEEDED PLEASE

Mathematics
2 answers:
Furkat [3]3 years ago
8 0
The answer is 
19=5-7x
7x-5=19
7x=-14
x=-14 divided by 7
x= -2
VashaNatasha [74]3 years ago
3 0
8 - 7x - 3 = 19

5 - 7x = 19    |subtract 5 from both sides

-7x = 14    |divide both sides by (-7)

x = -2
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\Rightarrow t= \frac{11\times ln|\frac{1}{10}|}{{ln|\frac25|}}

\Rightarrow t\approx 28 minutes

There will be 50 bacteria remaining after 28 minutes.

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