Hypertension is the term used to describe high blood pressure. Blood pressure is a measurement of the force against the walls of your arteries as your heart pumps blood through your body. Blood pressure readings are usually given as two numbers -- for example, 120 over 80 (written as 120/80 mmHg).
well you only switch inequality signs when dividing or multiplying the opposite side of the equation by a negative number because negative numbers can shift or switch around the graph so you have to flip the inequality sign otherwise you'll get the wrong graph. Jayne Â· 1 year ago.
When you have same signs, think of the following phrase: Same signs, find the sum, keep the sign! When you have different signs, think of the following phrase: Different signs, find the difference, keep the sign of the larger number. When multiplying or dividing two numbers with same signs, the answer is positive. The opposite is true as well. When multiplying or dividing two numbers with different signs, the answer is negative.