The slope of the line is -3/4
Assuming you mean

, which is the equation of a circle :
the general equation of a circle of radius

and center

is

hence here the center is
Speed=distance/time
8=distance/15
120km= distance
Answer:
Emma should expect the sum to be equal to five "60 times"
Step-by-step explanation:
Please kindly check the attached file for explanation
The perimeter of a square follows the equation P = 4a, in which P is the perimeter and a the length of one side.
We know the perimeter is P = 76, and the length of one side is a = 3x+4.
P = 4a
76 = 4(3x+4)
76 = 12x + 16
We need to solve for x. Let's subtract 16 from both sides to have the variables on a side and the numbers on a side:
76 - 16 = 12x + 16 - 16
60 = 12x
Now, let's divide both sides by 12 to have the variable x on a side and its value on the other
60 = 12x
60/12 = (12x)/12
5 = x
Hope this helps! :D