Calculate by using addition. Use the additive inverse of the integers in brackets.

Welcome back Sahm❤️❤️🥰 — missed you this week. Here are the solutions to your questions: 3. Calculate by using addition. Use the additive inverse of the integers in brackets. a) Step 1: Use the additive inverse of -2, which is 2. 4 - (-2) = 4 + 2 Step 2: Perform the addition. 4 + 2 = 6 The answer is 6. b) Step 1: Use the additive inverse of +3, which is -3. 8 - (+3) = 8 + (-3) Step 2: Perform the addition. 8 + (-3) = 5 The answer is 5. c) Step 1: Use the additive inverse of +3, which is -3. -5 - (+3) = -5 + (-3) Step 2: Perform the addition. -5 + (-3) = -8 The answer is -8. d) Step 1: Use the additive inverse of -10, which is 10. 9 - (-10) = 9 + 10 Step 2: Perform the addition. 9 + 10 = 19 The answer is 19. e) Step 1: Use the additive inverse of -7, which is 7. 8 - (-7) = 8 + 7 Step 2: Perform the addition. 8 + 7 = 15 The answer is 15. f) Step 1: Use the additive inverse of +8, which is -8. -11 - (+8) = -11 + (-8) Step 2: Perform the addition. -11 + (-8) = -19 The answer is -19. g) Step 1: Use the additive inverse of +3, which is -3. -12 - (+3) = -12 + (-3) Step 2: Perform the addition. -12 + (-3) = -15 The answer is -15. h) Step 1: Use the additive inverse of -13, which is 13. 15 - (-13) = 15 + 13 Step 2: Perform the addition. 15 + 13 = 28 The answer is 28. i) Step 1: Use the additive inverse of -15, which is 15. 4 - (-15) = 4 + 15 Step 2: Perform the addition. 4 + 15 = 19 The answer is 19. j) Step 1: Use the additive inverse of -13, which is 13. -13 - (-13) = -13 + 13 Step 2: Perform the addition. -13 + 13 = 0 The answer is 0. k) Step 1: Use the additive inverse for each subtraction. The additive inverse of -1 is 1, and the additive inverse of -5 is 5. 6 - (-1) - (-5) = 6 + 1 + 5 Step 2: Perform the addition. 6 + 1 + 5 = 12 The answer is 12. l) Step 1: Use the additive inverse for each subtraction. The additive inverse of -11 is 11, and the additive inverse of -8 is 8. 19 - (-11) - (-8) = 19 + 11 + 8 Step 2: Perform the addition. 19 + 11 + 8 = 38 The answer is 38. 4. A microwave oven increases the temperature of a piece of meat from -12^ C to 67^ C. What is the change in temperature? Step 1: Identify the initial and final temperatures. Initial temperature (T_initial) = -12^ C Final temperature (T_final) = 67^ C Step 2: Calculate the change in temperature using the formula T = T_final - T_initial. T = 67^ C - (-12^ C) Step 3: Simplify the expression. Subtracting a negative number is equivalent to adding its positive counterpart. T = 67^ C + 12^ C T = 79^ C The change in temperature is 79^ C. 5. Mrs Mojapelo cooks chicken pieces and puts the dish in the freezer. The freezer lowers the temperature from 15^ C to -18^ C. What is the temperature range? Step 1: Identify the highest and lowest temperatures. Highest temperature = 15^ C Lowest temperature = -18^ C Step 2: Calculate the temperature range by subtracting the lowest temperature from the highest temperature. Range = 15^ C - (-18^ C) Step 3: Simplify the expression. Range = 15^ C + 18^ C Range = 33^ C The temperature range is 33^ C. 6. Mr Sobekwa's bank statement shows an amount of -R500. If he previously had R325 in his bank account, how much does he need to put back so that he once again has R325 in his account? Step 1: Determine the current balance and the desired final balance. Current balance = -R500 Desired final balance = R325 Step 2: Calculate the amount needed to reach the desired final balance from the current balance. Amount needed = Desired final balance - Current balance Amount needed = R325 - (-R500) Step 3: Simplify the expression. Subtracting a negative amount is equivalent to adding a positive amount. Amount needed = R325 + R500 Amount needed = R825 Mr Sobekwa needs to put back R825. Send me the next one 📸