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MArishka [77]
2 years ago
9

Carlos opened an internet café in November. The table shows his profit or loss during his first four months in business. Use the

table on the below to determine what was the overall profit or loss for the first four months the Internet café was open?
a. -$1,135.52 b. +$2,270.52 c. -$1,270.52 d. +$4,541.56
Mathematics
2 answers:
Ksju [112]2 years ago
3 0

Answer:

not sure

Step-by-step explanation:

do you have a photo of the table that came with the question if so I might be able to help

hjlf2 years ago
3 0

Answer: is d

Step-by-step explanation:

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A bacteria culture starts with 12,000 bacteria and the number doubles every 50 minutes.
Vlada [557]

Answer:

a)  y=12000(2)^{\frac{t}{50}}

b)  Approx. 27,569 bacteria

c)  About 103 minutes

Step-by-step explanation:

a)

This will follow exponential modelling with form of equation shown below:

y=Ab^{\frac{t}{n}}

Where

A is the initial amount (here, 12000)

b is the growth factor (double, so growth factor is "2")

n is the number of minutes in which it doubles, so n = 50

Substituting, we get our formula:

y=Ab^{\frac{t}{n}}\\y=12000(2)^{\frac{t}{50}}

b)

To get number of bacteria after 1 hour, we have to plug in the time into "t" of the formula we wrote earlier.

Remember, t is in minutes, so

1 hour = 60 minutes

t = 60

Substituting, we get:

y=12000(2)^{\frac{t}{50}}\\y=12000(2)^{\frac{60}{50}}\\y=12000(2)^{\frac{6}{5}}\\y=27,568.76

The number of bacteria after 1 hour would approximate be <u>27,569 bacteria</u>

<u></u>

c)

To get TIME to go to 50,000 bacteria, we will substitute 50,000 into "y" of the equation and solve the equation using natural logarithms to get t. Shown below:

y=12000(2)^{\frac{t}{50}}\\50,000=12,000(2)^{\frac{t}{50}}\\4.17=2^{\frac{t}{50}}\\Ln(4.17)=Ln(2^{\frac{t}{50}})\\Ln(4.17)=\frac{t}{50}*Ln(2)\\\frac{t}{50}=\frac{Ln(4.17)}{Ln(2)}\\\frac{t}{50}=2.06\\t=103

After about 103 minutes, there will be 50,000 bacteria

4 0
3 years ago
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Answer:

d

Step-by-step explanation:

he is benifeting from both

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Answer:

13. 16+16-16+16x = 16+16x

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Answer:

Alemania / Germany

Step-by-step explanation:

Clearly the text refers to Germany (Alemnia). Felipe will celebrate a holiday with his german family (familia alemana)

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An ostrich can run at a rate of 50 miles in 60 minutes.At this rate,how long would it take an ostrich to run 15 miles?
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