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Elis [28]
3 years ago
13

A baker records the internal temperature of a pie that has been left out on the counter. The room temperature is 14 Celsius. An

equation that models this situation is T (t) =68 (0.5)^r/10 where T is the temperature in degrees Celsius and t is the time in minutes. Determine the temperature to the nearest degree,of the pie after 15
minutes. How much time did it take for the pie to reach an internal temperature of 31°C?
Mathematics
1 answer:
maksim [4K]3 years ago
5 0
Assume r= t  not sure if you mistyped this.
t =  15 min

T(t)  = 68 (0.5)^(15/10) = 24 Celsius

31 = (0.5)^(t/10) take ln

ln31 = (t/10) ln (0.5) + ln68

t = (ln32 - ln 68/ln0.5) * 10 = 11.3 min 


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Answer:

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C: 3xy-6x

Step-by-step explanation:

Commutative property: change the orders in which numbers are multiplied

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4 0
3 years ago
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Alexandra [31]

Answer:

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3 years ago
Bonnie volunteers to bring bags of candy to her child's class for the Halloween party this year. She buys one bag of candy A
jeka57 [31]

Answer: Bonnie can make 40 treat bags. Each treat bag has three pieces of Candy A, 11 pieces of Candy B, and 13 pieces of Candy C.

Step-by-step explanation:

Since there's no number of student's in her child's class, I did this:

I found the common factors of 120, 440, and 520. And found out that the GCF (greatest common factor) is 40.

120: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120.

440: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440.

520: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520.

After finding out that the GCF is 40, I took the numbers 120, 440, and 520, and divided them by 40.

120 divided by 40 = 3

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520 divided by 40 = 13

Therefore Bonnie can make 40 treats bags with no candy pieces left behind.

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2 years ago
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