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WILL GIVE BRAINLEST ANSWER TO WHO ANSWERS FIRST!!Eva is showing her work in simplifying (7.3 – 7.2) – 3.8 + 3.7. In which step did Eva make an error?Step 1: (7.3 – 7.2) – 3.8 + 3.7Step 2: 7.3 + (–7.2 – 3.8) + 3.7 (commutative property)Step 3: 7.3 – 11 + 3.7Step 4: 7.3 + 3.7 – 11 (commutative property)Step 5: 11 – 11 = 0 Step 2; she wrote commutative instead of distributive Step 4; she wrote commutative instead of distributive Step 4; she wrote commutative instead of associative Step 2; she wrote commutative instead of associative

Respuesta :

ecandia1030

Eva first should have started with the numbers in parentheses.

Step 1: (7.3-7.2) = 0.1

Step 2: 0.1+3.7=3.8

Step 3: 3.8-3.8=0


The error is in step 2. She wrote commutative instead of associative.

webbmakena

Answer:Step 2; she wrote commutative instead of associative.Explanation:An associative property of addition is a rule that states that, the sum of three (3) or more numbers will always be the same irrespective of how these numbers are grouped.This ultimately implies that, re-grouping three (3) or more numbers and adding them will give the same answer or end result (outcome).Mathematically, the associative property of addition is given by the formula;Applying the above rule to the question, we have;Hence, we would have the correct step written as;Step 2: 7.3 + (-7.2 − 3.8) + 3.7 (associative property of addition).In conclusion, Eva should have written associative property in Step 2 instead of commutative property.

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