Answer:
18
Step-by-step explanation:
substitute x = 3 into the expression
6x = 6(3) = 6 × 3 = 18
Answer:
7 1/2 mph
Step-by-step explanation:
2 1/2=1/3 hour
5 = 2/3 hour
7 1/2 = 1 hour
<h3>Given Equation:</h3>
6 - 2n = -4n - 2 - 8
<h3>To Find:</h3>
The value of n.
<h3>Solution:</h3>
6 - 2n = -4n - 2 - 8
or, -2n + 4n = -2 - 8 - 6
or, 2n = -16
or, n = -16/2
or, n = -8
<h2>Answer:</h2>
The value of n is -8.
Answer:
After 15 minutes, the temperature of both the furnaces will be same.
Step-by-step explanation:
Let 
be the minutes when the temperature of both becomes same.
Now, as per question:
Temperature of the furnace after minutes that is cooling at the rate of 15 degree per minute is given as:
Temperature of the furnace after minutes that is heating at the rate of 5 degree per minute is given as:
Now, equating both the temperatures, we get
Therefore, after 15 minutes, the temperature of both the furnaces will be same.
