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Natasha2012 [34]
3 years ago
10

1 28 3 140 fill in the blanks

Mathematics
1 answer:
exis [7]3 years ago
7 0

Answer:

??? what are you asking to fill in

Step-by-step explanation:

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When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has incr
Andrews [41]

Answer:

  (a)  13.85 °C

Step-by-step explanation:

The temperature difference is a decaying exponential function of time. Here, it decreases from an initial difference of 15 °C to 10 °C after 25 minutes. So, that temperature difference can be modeled as ...

  ΔT = 15(10/15)^(t/25)

We want to find the value of this at t=55. It is ...

  ΔT = 15(2/3)^(55/25) ≈ 6.15

This is the amount the temperature of the drink is below room temperature.

  drink temperature = (20 - 6.15) °C = 13.85 °C

The temperature of the drink after 55 minutes is about 13.85 °C.

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3 years ago
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alexandr1967 [171]

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Step-by-step explanation:

65 times 2=130

180-130=50

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3 years ago
What does number one mean of letter b
soldier1979 [14.2K]

Answer:

M, N, O

Step-by-step explanation:

This line contains the letter "M"

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What is the slope of the linear equation 30x-60y=12
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Answer:

60y = 30x - 12

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The slope is 1/2

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