The temperature is 50 degrees Fahrenheit. The temperature will decrease by 4 degrees F. each hour. Let h be the number of hours.
2 answers:
Answer:
Option B is correct
Step-by-step explanation:
Here, h be the number of hours.
As per the statement:
The temperature is 50 degrees Fahrenheit.
⇒Initial temperature = 50 degrees Fahrenheit
It is also given that:
The temperature will decrease by 4 degrees F each hour.
1 hour temperature will be = -4 degree F
then;
In h hour temperature = -4h degrees F
We have to find the the temperature be below 32 degrees F.
Total Temperature be below 32 degrees F means:
where, h represents the number of hours.
Therefore, the the temperature below 32 degrees F will be
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<u>Correct Question</u>
In the table shown, the sum of each row is shown to the right of the row and the sum of each column is shown below the column. What is the value of L?
Answer:
L=7
Step-by-step explanation:
From the first row: 2J+K=5
Therefore: K=5-2J
From the second column, 2K+J=7
Substitute K derived above into 2K+J=7
2K+J=7
2(5-2J)+J=7
10-4J+J=7
-3J=7-10
-3J=-3
J=1
Recall: K=5-2J
K=5-2(1)=3
K=3
From the third column, J+2L=15
1+2L=15
2L=15-1=14
L=7
Therefore, the value of L=7
CHECK: