Answer:
J = 15
Step-by-step explanation:
In order to find what the variable equals, you need to put it alone on one side of the equation. So to get rid of the 5, you have to do the opposite of division, which is multiplication. You multiply 5 and 3 to get 15. This will look like:
15 = J
Usually, there is something left to do on the number side, but in this case, there is nothing and you found your answer!
Answer:
20-30 seconds or 51
Step-by-step explanation:
Answer:
k = 5.
Step-by-step explanation:
Equation of a line:
The equation of a line has the following format:

In which m is the slope, and b is the y-intercept(y when x = 0).
Perpendicular lines
When two lines are perpendicular, the multiplication of their slopes is -1.
Perpendicular to the line y=x−285.
This line has slope 1, so the line we want to find the equation has slope 
Then

Passes through (7, 0)
This means that when
. So



So

Find the value of k given that the line through (k, 2)
This means that when
. So



The value of k is k = 5.