Study Guide Section 1.4
... An open sentence is a mathematical statement that contains two expressions and a symbol that compares them. An equation is an open sentence that contains the symbol =. An inequality is an open sentence that contains one of the symbols <, ≤, >, or ≥ When you substitute a number for the variable in an ...
... An open sentence is a mathematical statement that contains two expressions and a symbol that compares them. An equation is an open sentence that contains the symbol =. An inequality is an open sentence that contains one of the symbols <, ≤, >, or ≥ When you substitute a number for the variable in an ...
Linear Equations in One Variable
... • To solve an equation in x means to find all values of x for which the equation is true. Such values are called solutions. • For instance, x = 4 is the solution of the equation 3x – 5 = 7 since replacing x with 4 makes a true ...
... • To solve an equation in x means to find all values of x for which the equation is true. Such values are called solutions. • For instance, x = 4 is the solution of the equation 3x – 5 = 7 since replacing x with 4 makes a true ...
Review Chapter 5
... 20. To learn more about water evaporation, you measure the depth of a puddle after a rain storm. Your first measurement taken 3 hours after the storm, was 2.25 in. You take another measurement an hour later to determine that the rate of evaporation of the puddle is 0.25 in. per hour. a. ...
... 20. To learn more about water evaporation, you measure the depth of a puddle after a rain storm. Your first measurement taken 3 hours after the storm, was 2.25 in. You take another measurement an hour later to determine that the rate of evaporation of the puddle is 0.25 in. per hour. a. ...
Pre-Algebra Syllabus - Pennsauken Public Schools
... and construct simple equations and inequalities to solve problems by reasoning about the quantities. Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic soluti ...
... and construct simple equations and inequalities to solve problems by reasoning about the quantities. Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic soluti ...
Solve Systems with Elimination
... Solving Systems of Equations So far, we have solved systems using graphing and substitution. These notes show how to solve the system algebraically using ELIMINATION with addition and subtraction. Elimination is easiest when the equations are in standard form. ...
... Solving Systems of Equations So far, we have solved systems using graphing and substitution. These notes show how to solve the system algebraically using ELIMINATION with addition and subtraction. Elimination is easiest when the equations are in standard form. ...
