1. Do Now 1/26/10 Take out HW from last night. Take out HW from last night. Text p. 249, #12-32 evens Text p. 249, #12-32 evens Copy HW in your planner. Copy HW in your planner. Text p. 256, #14-38 evens Text p. 256, #14-38 evens Quiz sections 5.4 -5.7 Friday Quiz sections 5.4 -5.7 Friday In your notebook, explain what steps you would take in order to solve the following equation. Then solve. In your notebook, explain what steps you would take in order to solve the following equation. Then solve.

2. Homework Text page 249, #12-32 evens 12) 40 12) 40 14) -48 14) -48 16) -1 1/3 16) -1 1/3 18) -1 2/5 18) -1 2/5 20) 11 2/3 20) 11 2/3 22) 33 22) 33 24) -1/4 24) -1/4 26) 2/3 26) 2/3 28) 31/35 28) 31/35 30a) 5/8 square inches 30b) 3/4x 30c) 5/8 + 3/4x = 1; x = 1/2 inch 32a) 1/5 32b) 3750 spectators 32c) 1000 home team fans

3. Remember this??? Multiply each side of the equation by the MULTIPLICATIVE INVERSE of -7/15 Divide (cancel) common factors Multiply Subtract 4/5 from each side. Write fractions using LCD 1 To solve equations with fractions, so far you followed these steps: (1) Undo addition and/or subtraction to get the variable alone on one side of the equation. (2) Multiply both sides of the equation by the multiplicative inverse of the variable term.

4. Objective SWBAT use the LCD to solve equations and inequalities. SWBAT use the LCD to solve equations and inequalities.

5. Section 5.7, “Equations and Inequalities with Rational Numbers” **Another way to solve an equation with fractions is to clear fractions by multiplying the WHOLE EQUATION by the LCD of the fractions. The resulting equation is equivalent to the original equation WITHOUT fractions.

6. Two-step equation. Solve for x. Find LCD of all fractions in the equation, then multiply the whole equation by the LCD. Solving Equations by Clearing Fractions Use distributive property and simplify each term of the equation.

7. Try It Out!! Solve

8. Two-step equation. Solve for m. Look for the greatest number of decimal places. Then multiply the WHOLE EQUATION by that power of 10. Solving Equations by Clearing Decimals Use distributive property and simplify each term of the equation.

9. Try It Out!! Solve

10. Two-step inequality. Solve for x. Find LCD of all fractions in the inequality, then multiply the whole inequality by the LCD. Solving Inequalities by Clearing Fractions Use distributive property and simplify each term of the inequality. Don’t forget to flip the inequality when dividing by a negative.

11. Try It Out!! Solve

12. Homework Text p. 256, #14-38 evens Text p. 256, #14-38 evens

13. Homework Punchline worksheet #79 and practice worksheet 5.6 Form B evens 2) 22 2) 22 4) 30 4) 30 6) 38 6) 38 8) 1 3/4 8) 1 3/4 10) -11/24 10) -11/24 12) -5/14 12) -5/14 14) 35 14) 35 16) -36 16) -36 18) 22 18) 22 20) -1/5 20) -1/5 22) -1/6 22) -1/6 24) 1/10 24) 1/10 26) 80 days 26) 80 days Flu Shot: A JAB WELL DONE Fourth of July: JUST UNDER EIGHT DAYS Practice worksheet 5.6 B evens Punchline worksheet #79