Week 2 - Math 8 - Assessment%0D%0A4 of 84 of 8 Items%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A %0D%0A %0D%0A %0D%0AQuestion%0D%0APOSSIBLE POINTS: 4.17%0D%0AA student solves the following problem:%0D%0A%0D%0AProblem:%0D%0A%0D%0A2(x−3) + 3x = 19 %0D%0A%0D%0AStep 1: 2x − 6 + 3x = 19 %0D%0A%0D%0AStep2: (2x + 3x) −6 = 19 %0D%0A%0D%0AStep 3: 5x − 6 = 19 %0D%0A%0D%0AStep 4: 5x - 6 + 6 = 19 + 6 %0D%0A%0D%0AStep 5: 5x = 25 %0D%0A%0D%0AStep 6: x = 5 %0D%0A%0D%0AWhat property justifies going from step 3 to step 4?%0D%0A%0D%0AResponses%0D%0A%0D%0ACommutative Property of Addition%0D%0ACommutative Property of Addition%0D%0A%0D%0ADistributive Property%0D%0ADistributive Property%0D%0A%0D%0ASubstitution Property%0D%0ASubstitution Property%0D%0A%0D%0AAddition Property of Equality
1 answer
1 answer