Calisickleroye9vh also answer this is last one thx
1 answer:
Answer:
see below
Step-by-step explanation:
You can add any multiple of one equation to the other without changing the solution to the system.
In the first answer choice the first equation is added to the second, and the first equation is left alone.
In the third answer choice, the first equation is subtracted from the second, and the second equation is left alone.
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The other answer choices have strange combinations of sums and differences that result in systems of equations with different answers.
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Total mold spores at end of 9.30 am is 26901.
Step-by-step explanation:
Number of molds = 14000
Rate = 9.7% per hour
Number of hours = 12 am to 9.30 am = 9 hours
Growth of mold = 14000 * 9.7% * 9
= 12901
Total mold spores at end of 9.30 am = 14000 + 12901
= 26901
Hence, the expected number of mold spores at 9.30 am is 26901.
