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Marina CMI [18]
3 years ago
12

Y=x+2 x-y=2 What is the solution

Mathematics
1 answer:
Alisiya [41]3 years ago
8 0

Answer:

No solutions.

Step-by-step explanation:

x - y = 2   <Start with an equation

x - (x + 2) = 2   <Plug in the given y value and solve for x

x - x - 2 = 2   <Combine like terms

0 - 2 = 2   <There are no values of x

No solutions.

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Answer:

Initial bacterias = 6006000

Altought I believe is safe to assume that the values were 192,000 and 384,000 instead of 192,192,000 and 384,384,000, in that case the initial bacterias is 6000

Step-by-step explanation:

A exponential growth follows this formula:

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Bacterias (55 hours) = 192,192,000

Bacterias (66 hours) = 384,384,000

Bacterias(55hours)=C*r^{{\frac{55-t}{t}}} \\Bacterias (66hours) = C*r^{\frac{66-t}{t}}}

If you divide both you can get the growth rate:

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So with that r = 2 and each time interval correspond to 11 years

Then replacing in one you can get the initial amount of C

Bacterias (55hours)=C*2^{\frac{55-11}{11} } 192,192,000 = C*32\\C= 6006000

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