The Primary Motor Cortex. Every voluntary movement you make is controlled through the primary motor cortex, or PMC, which is located in the back of the frontal lobe, just about at the top of your head.Signals in your brain are sent to the muscles, telling them to make a movement.he Primary Motor Cortex. Every voluntary movement you make is controlled through the primary motor cortex, or PMC, which is located in the back of the frontal lobe, just about at the top of your head.
What is a unit rate? A unit rate is a rate expressed in a quantity of one unit. A car traveling at a rate of 60 miles per hour, for example, is an expression of a unit rate. It describes the car's traveling rate over 1 hour of time.
Solution: 1  Step 1: Unit rate is a ratio of different units of measurement with the second term being equal to 1. 2  Step 2: So, Unit Rate = toys/hours =60/40. 3  Step 3: = [Divide both the numerator and the denominator by the denominator.]. 4  Step 4: =15/1 = 15 [Simplify.]. 5  Step 5: So, William can pack 15 toys/hour.nit Rate is the ratio of two measurements in which the second term is 1.