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Leviafan [203]
3 years ago
5

A film ends at 1.05 a.m and lasts for 1 hour 45 min. At what time does the film start?

Mathematics
2 answers:
Ad libitum [116K]3 years ago
6 0

u will have to add the two

1hr 45mins + 1:05

remember add hrs to hrs and minutes to minutes

1+1 =2

45+5=50

which means the movie started at 2:50 am

and to verify ur answer subtract 2:50 from 1:05

= 1hrs 45 mins

<em>Answer</em><em>=</em><em> </em><em>2</em><em>:</em><em>5</em><em>0</em><em> </em><em>am</em><em> </em>

Dimas [21]3 years ago
3 0

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

According to above statement, the film started 1 hour and 45 minutes before 1 : 05 am

so, starting time is equal to :

  • 1 hour 45 minutes before 1 : 05

  • 1 : 05 - 1 hour 45 minutes

that is :

  • 11 : 20 pm
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Answer:

  a. 3942 kWh

  b. $473.04

  c. 1314 kWh

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Step-by-step explanation:

<h3>a. </h3>

There are 1000 W in 1 kW, so 450 W = 0.450 kW. The energy used per day is ...

  (0.45 kW)(24 h) = 10.8 kWh . . . . energy per day

Then in a 365-day year, the energy used is

  (365 da/yr)(10.8 kWh/da) = 3942 kWh/yr

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<h3>b.</h3>

At the rate of $0.12/kWh, the cost of running the pump is ...

  ($0.12/kWh)(3942 kWh/yr) = $473.04/yr

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<h3>c.</h3>

Switching the pump off for 1/3 of the time will save 1/3 of the energy found in part (a):

  1/3(3942 kWh) = 1314 kWh . . . . energy saved by switching off the pump

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<h3>d.</h3>

The savings will be 1/3 of the cost of running the pump full time:

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4 0
2 years ago
Which fraction is not equivalent to 5/6 ?
mina [271]

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4/12

Step-by-step explanation:

7 0
3 years ago
An adult’s dinner costs $7. A family of 3 adults and 2 children pays $31 for their dinners.
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Answer:

1. 10 dollars for each child

2. a. You could have 2 children and 4 adults.

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7 0
3 years ago
HELP PLEASE I do not know what to do i can only add photos of the answers i need help fast thank you
IRISSAK [1]

Answer:

f(x) = 3 if x ≤ -2

     =  1 if x > -2 ⇒ attached figure

Step-by-step explanation:

* Lets explain how to answer the question

- For the part of the graph on the left side (2nd quadrant)

- There is a horizontal line start from x = -∞ and stop at x = -2

- The end of the line is black dot means x = -2 belongs to the function

- The horizontal line drawn at y = 3

∴ The equation of the horizontal line is y = 3

∴ The function represents this part of graph is y = 3 if x ≤ -2

- The other part of the graph is also horizontal line start from

  x = -2 to x = ∞

- The end of the line is white dot means x = -2 does not belong

 to the function

- The horizontal line drawn at y = 1

∴ The equation of the horizontal line is y = 1

∴ The function represents this part of graph is y = 1 if x > -2

* f(x) = 3 if x ≤ -2

       =  1 if x > -2

- The answer is attached

6 0
3 years ago
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