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3 years ago

Snack in our class occurs at 9:50 am. We eat lunch at 12:05 pm. How long to students need to wait

Mathematics

2 answers:

Novay_Z [31]3 years ago

7 0

Answer:

2 hours and 15 minutes

Step-by-step explanation:

Arte-miy333 [17]3 years ago

4 0

Answer:

Students will need to wait 2 hours and 15 minutes

Step-by-step explanation:

Using 9:50 AM we can add 10 minutes so it can become 10:00 AM then we can add 2 hours making it 12:00 PM then add 5 minutes to make it 12:05 PM for the time of lunch. Giving us 2 hours and 15 minutes.

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325 how to turn it into a fraction

aalyn [17]

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So:

325 as a fraction is: 325/1

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3 years ago

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navik [9.2K]

Answer:

Step-by-step explanation:

|-6x+3|=0

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3 years ago

Determine the domain of the function (fog) (x) where f(x) = 3x-1/x-4 and g(x)=x+1/x

Mrac [35]

Answer:

$(-\infty,0)\cup(0, \frac{1}{3})\cup (\frac{1}{3},\infty)$

Step-by-step explanation:

The given functions are $f(x)=\frac{3x-1}{x-4}$ and $g(x)=\frac{x+1}{x}$ .

We now composed the two functions to find:

$(f\circ g)(x)=f(g(x))$

$\implies (f\circ g)(x)=f(\frac{x+1}{x})$

$\implies (f\circ g)(x)=\frac{3(\frac{x+1}{x})+1}{\frac{x+1}{x}-4}$

$\implies (f\circ g)(x)=\frac{4x+3}{1-3x}$

This function is defined if the denominator is not zero.

$1-3x\ne0$

$x\ne\frac{1}{3}$

We write this in interval notation as:

$(-\infty,\frac{1}{3})\cup (\frac{1}{3},\infty)$

We need to be cautious here as x=0 is not in the domain of g(x).

Therefore the domain of $(f\circ g)(x)$ is

$(-\infty,0)\cup(0, \frac{1}{3})\cup (\frac{1}{3},\infty)$

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3 years ago

If you know how many CD's Mickey orders,can you determine how much money he spends?Write the correspondering expression.

Setler [38]

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3 years ago

A bacteria culture begins with 4 bacteria which double in size every hour. How many bacteria exist in the culture after 8 hours?

Shalnov [3]

Answer:

Option C. 1,024 bacteria

Step-by-step explanation:

We are given that a bacteria culture begins with 4 bacteria which double in size every hour. And we have to find that how many bacteria exist in the culture after 8 hours;

So, Number of bacteria after one hour = 4 * 2 = 8

Number of bacteria after two hours = 8 * 2 = 16

Number of bacteria after three hours = 16 * 2 = 32

Number of bacteria after four hours = 32 * 2 = 64

Number of bacteria after five hours = 64 * 2 = 128

Number of bacteria after six hours = 128 * 2 = 256

Number of bacteria after seven hours = 256 * 2 = 512

Number of bacteria after eight hours = 512 * 2 = 1,024

Therefore, 1,024 bacteria exist in the culture after 8 hours .

7 0

3 years ago