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.
Rates. A ratio is a comparison of two numbers or measurements. The numbers or measurements being compared are called the terms of the ratio. A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69, the rate is 69 for 12 ounces.The first term of the ratio is measured in cents; the second term in ounces. You can write this rate as 69 /12 ounces or 69 :12 ounces.he numbers or measurements being compared are called the terms of the ratio. A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69, the rate is 69 for 12 ounces.