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Sonbull [250]
3 years ago
13

There was no snow on the ground when it started falling at midnight at a constant rate of 1.5 inches per hour. At

Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

The depth of snow at 9:00 am was 19 inches.

Step-by-step explanation:

Consider the provided information.

Let x represents the number of hours and S(x) represents the depth of snow.

There was no snow on the ground when it started falling at midnight at a constant rate of 1.5 inches per.

That means the depth of snow will be:

S(x)=1.5x\ \ \ 0\leq x< 4

At  4:00 a.m., it starting falling at a constant rate of 3 inches per hour,

S(x)=3(x-4)+6\ \ \ 4\leq x

7:00 a.m. to 9:00 a.m., snow was  falling at a constant rate of 2 inches per hour.

S(x)=2(x-7)+15\ \ \ 7\leq x\leq 9

The required piece-wise linear function is

\left\{\begin{matrix}1.5x & 0\leq x

We need to find the how deep was the snow at 9:00 am

For 9:00 am we will choose the function which can take the value of x=9

Substitute the value of x=9 in S(x)=2(x-7)+15

S(x)=2(9-7)+15

S(x)=2(2)+15

S(x)=19

Hence, the depth of snow at 9:00 am was 19 inches.

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