Solve this system of equations algebraically: Y+x=19-x^2
X+y=80
1. Isolate one variable in the system of equations
2. You substitution to create a one variable equation
3. Softer the term the unknown variable in the equation

The system has Real number solution(s)

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

What is the area of the triangle 10 13 12

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups