1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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 


You might be interested in
A stereo system is being installed in a room with a rectangular floor measuring 11 11 feet by 10 10 feet and a a 9 9​-foot ceili
lisabon 2012 [21]

Answer:

idkhhfrdssefghujhgjjuuu

5 0
3 years ago
forty-six out of the total 310 seniors graduate with honors. What is the ratio of seniors graduating with honors to the total nu
LekaFEV [45]
46 seniors graduate with honors out of 356 seniors
5 0
3 years ago
I need help ASAP like I might actually fail
natulia [17]

2x + 7 ≤ 3x - 5

Start by keeping the variable x on the left side of the inequality, and move everything else to the right side.

We can do this by subtracting 3x from both sides and subtracting 7 from both sides.

-x ≤ -12

Divide both sides by -1 to make x a positive; when dividing by a negative number you will flip the inequality sign, so ≤ becomes ≥.

x ≥ 12

Possible solutions for x are any number equal to or greater than 12.

8 0
3 years ago
A parcel of land is in the shape of a rectangle with length L(in feet). sixty-five percent of the length is waterfront and 70 fe
OlgaM077 [116]
The length of the land = the length of the waterfront + the length of dry land

The length of the land = L
The length of the waterfront = 0.65L
The length of the dry land = 70 feet

L = 0.65L + 70
L - 0.65L = 70
0.35L = 70
L = 70 ÷ 0.35
L = 200 feet
8 0
4 years ago
3/6x4/9 plz help meeeeee
Aleonysh [2.5K]

Answer:

12/54

Step-by-step explanation:

4x3=12

6x9=54

3 0
3 years ago
Read 2 more answers
Other questions:
  • A group of objects or numbers is called
    5·2 answers
  • Can someone help me with this question?
    11·1 answer
  • Please help...I can't really wrap my brain around this...
    5·1 answer
  • I need help please. Can someone help me pleaseeeeeeeeeeeeeeeeeeeee
    15·1 answer
  • Is 5.8cm < then 580mm
    13·1 answer
  • Please help!! i need this badly please!!
    7·1 answer
  • I would just like some solving steps or the answers.
    15·1 answer
  • Please help!
    14·1 answer
  • The coordinates of the endpoints of EF are E( – 9,11) and F(1,6). Point G is on EF and divides it such that EG:FG is 2:3. What a
    10·1 answer
  • Solve for x. It's in the screenshot.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!