Answer:
C = pi * d = 2 * pi *r
Step-by-step explanation:
The circumference of a circle is the distance around the circle. It can be found by multiplying the diameter times pi.
C = pi * d
We can replace the diameter with twice the radius
C = pi * 2 * r = 2 * pi *r
Solve using your rules:
180 = 9x + 4x + 37
That means 143 = 13x
Thus x = 11
Answer:
x-1
Step-by-step explanation:
To find answers like this, you have to divide the percentage into the number given so:
45 / .60 = 75
She teaches 75 math students
Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y.
