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mamaluj [8]
3 years ago
15

a light bulb consumes 6300 watt hours in 3 days and 12 hours. how many watt hours does it consume per day

Mathematics
1 answer:
Oksana_A [137]3 years ago
6 0

Answer:

1800 watt hours

Step-by-step explanation:

6300 watt hours in 3 days and 12 hours

3 x 24 = 72 3 days worthof hours

72 + 12 = 84 total hours

6300/84 = 75 watt hours per hour

75 x 24 = 1800 watt hours per day

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Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model, with a
Len [333]

Answer:

The size of the sample after four hours is of 3158 bacteria.

Step-by-step explanation:

The population after t hours can be modeled by the continuous exponential growth model, which is:

P(t) = P(0)e^{rt}

In which P(0) is the initial population and r is the growth rate paremeter.

A growth rate parameter of 17% per hour.

This means that r = 0.17

Suppose also that a sample culture of 1600 is obtained from this population.

This means that P(0) = 1600

Find the size of the sample after four hours.

This is P(4).

P(t) = P(0)e^{rt}

P(t) = 1600e^{0.17t}

P(4) = 1600e^{0.17*4}

P(4) = 3158.2

Rounding to the nearest integer

The size of the sample after four hours is of 3158 bacteria.

4 0
3 years ago
jake took a taxi to the movie theatre last weekend. the cab totaled $43 but he also wanted to give the driver a 15% tip. what is
Gelneren [198K]

Answer:

49,45$

Step-by-step explanation:

15 : 100 = x : 43

x = (43 * 15) / 100 = 6,45

43 + 6,45 = 49,45$

6 0
3 years ago
Read 2 more answers
How would you write one million as a power of 10? Thank you appreciate your help!
Digiron [165]

Answer:

Hello! answer: 10⁶

Step-by-step explanation:

10 × 10 × 10 × 10 × 10 × 10 = 1,000,000 Therefore the answer would be 10⁶ Hope that helps!

3 0
2 years ago
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Find the value of x
Alekssandra [29.7K]

Answer:

x=12

Step-by-step explanation: brainest pls

7 0
2 years ago
What is the Volume of the square pyramid? (Round to the nearest tenth as needed)
Orlov [11]
<h3><u>given</u><u>:</u></h3>

base= 25 mm

height= 28 mm

<h3><u>to</u><u> </u><u>find</u><u>:</u></h3>

the volume of the square pyramid.

<h3><u>solution</u><u>:</u></h3>

<u>volume =  {a}^{2}  \frac{h}{3}</u>

<u>v =  {25}^{2}  \frac{28}{3}</u>

<u>v = 5833.33333 {mm}^{3}</u>

<u>v = 5833.3 {mm}^{3}</u>

8 0
2 years ago
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