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Marysya12 [62]
3 years ago
10

A can of soda is placed inside a cooler. As the soda cools, its temperature T (x) in degrees celsius is givien by the following

function, where x is the number of minute since the can was placed in the cooler.T(x)=-6+24e^-0.038xFind the intial temperature of the soda and its temperature after 20 mintues. Round your answers to the nearest degrees as necessary.Initial temperature:___ celsius.Temperature after 20 minutes:__celsius.
Mathematics
1 answer:
wel3 years ago
8 0

Answer:

Initial 18 degrees Celsius

After 20 minutes, 5 degrees Celsius

Step-by-step explanation:

It’s initial temperature can be calculated as at the time when x = 0

When x = 0, the temperature is -6+24 = 18 degrees Celsius

This is because the exponent part equals 1 since anything raised in to the power of zero is one.

After twenty minutes,

T(x) = -6 +24e^-0.038(20)

T(x) = -6 + 11.224 = 5.224

And that is approximately 5 degrees Celsius to the nearest degree

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How long does a car traveling at 70 mph take to travel 88 miles, in hours
dybincka [34]
So,

Obviously, the car will travel 70 miles in one hour.  So after one hour, the car will have traveled 70 miles.  That leaves 18 miles.

The time it will take for the car to go another 18 miles will be 18 divided by 70.
\frac{18}{70}

Simplify.
\frac{2*3*3}{2*5*7}
\frac{3*3}{5*7}
\frac{9}{35}

Divide.
≈ 0.25714

So a car traveling at 70 mph will take approximately 1.25714 hours or 1.26 hours to travel 88 miles.
7 0
3 years ago
15. Davis wants to pour 5 gallons of punch into
Sonja [21]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

Davis wants to pour 5 gallons of punch into ½ gallon jugs How many jugs will he need?

A. 2½

B. 5½

C. 10

D. 15

Answer:

Number of jugs = 10

Davis will need 10 jugs to pour 5 gallons of punch into ½ gallon jugs.

Step-by-step explanation:

David has 5 gallons of punch that he wants to pour into jugs.

The capacity of 1 jug is ½ gallon.

The required number of jugs may be found as

Number of jugs = gallons of punch/capacity of jug

For the given case, we have

Gallons of punch = 5

capacity of jug (in gallons) = ½ = 0.5

So, the required number of jugs is,

Number of jugs = 5/½

Number of jugs = 5/0.5

Number of jugs = 10

Therefore, Davis will need 10 jugs to pour 5 gallons of punch into ½ gallon jugs.

7 0
3 years ago
Please help i am confused
Leno4ka [110]

Answer: First Box, Fourth Box

Step-by-step explanation: I took the test

8 0
3 years ago
0.3 is 0.02% 0f what
mash [69]
Total= number / percent . i think it is 15
5 0
4 years ago
Read 2 more answers
All you need is in the photo <br>please answer fast​
Pepsi [2]
The statement “five-ninths” implies that it is equivalent to 5/9 or five-ninths and only B mentions the compatible answer.

Have a good day/evening/night.
7 0
3 years ago
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