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3 years ago

I need both will give brainliest.

Mathematics

1 answer:

saw5 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Standard form: Ax+By=C

Change C to 53

Ax+By=53

He could have added a combination of $1 bills and $5 bills or just $1 bills.

I hope this is right

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2 years ago

A population of bacteria is initially 6000. After three hours the population is 3000. If this rate of decay continues, find the

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Answer:

The equation is $A=6000e^{-0.23t}$ at a rate of -23%.

Step-by-step explanation:

Decay can be represented by the equation $A=A_0e^{rt}$ . We can find the rate at which it decays by using t=3 hours and A=3000. This means $A_0=6000$ in this context.

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$0.5=e^{(24.5)r}$

After substituting, we divided by 6000 to each side to get 0.5 on the left. Now to solve for r, we will take the natural log of both sides and use log rules to isolate r.

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We know $lne=1$ so we were able to cancel it out and divide both sides by 3.

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