The table gives the number of laps 19. SWIMMING Pragitha swam each week. Write an expression for the total number of laps she swam all four weeks. + - 20. Loy paid $(4x 7) for a beef roast and $(2x 5) for five pounds of potatoes. Write an FOOD expression for the total amount he spent on food. Subtract Linear Expressions Subtract. Use models if needed. 1. 2. + - + - - - (9x 7) (x 3) (3x 4) (x 5) 3. 4. + - + + - - (-3x 15) (-3x 2) (-2x 10) (-8x 1) 5. 6. + - - + - - (-2x 4) (x 11) (8x 9) (6x 1) 7. 8. + - - - - + (x 3) (5x 4) (2x 4) (-x 9) 9. 10. + - + - - + (-8x 2) (-5x 7) (-4x 2) (13x 1) 11. 12. - - - + - + (-7x 14) (x 6) (12x 3) (-7x 5) 13. 14. - - + + - - (3x 1) (-5x 17) (-9x 2) (-8x 2)
19. SWIMMING The table gives the number of laps Pragitha swam each week. Write an expression for the total number of laps she swam all four weeks. 20. FOOD Loy paid $(4x + 7) for a beef roast and $(2x - 5) for five pounds of potatoes. Write an expression for the total amount he spent on food. Subtract Linear Expressions Subtract. Use models if needed. 1. (9x + 7) - (x + 3) 2. (3x - 4) - (x - 5) 3. (-3x + 15) - (-3x + 2) 4. (-2x + 10) - (-8x - 1) 5. (-2x + 4) - (x - 11) 6. (8x + 9) - (6x - 1) 7. (x + 3) - (5x - 4) 8. (2x - 4) - (-x + 9) 9. (-8x + 2) - (-5x + 7) 10. (-4x - 2) - (13x + 1) 11. (-7x - 14) - (x - 6) 12. (12x + 3) - (-7x + 5) 13. (3x - 1) - (-5x + 17) 14. (-9x + 2) - (-8x - 2)
HW%2010.docx