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SpyIntel [72]
3 years ago
7

After a power failure, the temperature in a freezer increased an average rate of 2.5 Fahrenheit per hour. The total increase was

7.5 Fahrenheit. Right and solve any Quetion to find the number of hours until the power was restored.
Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0
I think the equation you're looking for may be y = -7.5 + 2.5x

hope this helps!
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1 point
s2008m [1.1K]

Answer:

i do not know

Step-by-step explanation:

6 0
2 years ago
What is the value of x?
Serjik [45]
The triangle ADC and the triangle CDB are similar. Therefore:
\dfrac{x}{6}=\dfrac{6}{8}\ \ \ \ |cross\ multiply\\\\8x=6\cdot6\\\\8x=36\ \ \ |:8\\\\x=4.5
Answer: A 4.5

6 0
3 years ago
Twelve students have equally likely chance of being selected in a drawing at school. Eight are girls and four are boys. What is
lubasha [3.4K]
There are 4 boys and 12 students in total. It would be 4/12, but if it was to be simplified, it would be 1/3. The probability of a boy being selected is 1/3.
4 0
3 years ago
Read 2 more answers
There was no snow on the ground when it started falling at midnight at a constant rate of 1.5 inches per hour. At
kumpel [21]

Answer:

The required piece-wise linear function is

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

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,

From mid night to 4:00 a.m the depth of snow will be 1.5×4=6 inches.

If we want to calculate the total depth of snow from midnight to 7:00 am we need to add 6 inches in 3(x-4) where 4≤x<7

Therefore,

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.

From mid night to 7:00 a.m the depth of snow will be 3(7-4)+6=15 inches.

If we want to calculate the total depth of snow from midnight to 9:00 am we need to add 15 inches in 2(x-7) where 7≤x≤9

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

Therefore, the required piece-wise linear function is

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

8 0
3 years ago
Please help me I'm stuck on this one
Colt1911 [192]
Ok i should know this i had the same test sum goes to 0 5/8 goes to 5/8 and m goes to -5/8 

hope this helps!
6 0
3 years ago
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