Question

Andrew is showing his work in simplifying (−5.7 + 2.2) − 1.1.

Step 1: (2.2 − 5.7) − 1.1
Step 2: 2.2 − (5.7 + 1.1)
Step 3: 2.2 − (6.8)
Step 4: −4.6

Which statement is true? (1 point)

Group of answer choices

In step 2, Andrew used the distributive property.

In step 4, Andrew's answer is incorrect.

In step 1, Andrew used the commutative property.

In step 3, Andrew used the associative property.

Answer 1

In step 2, Andrew used the distributive property

Thus is because a -1 was taken out of both -5.7 and -1.1

Answer 2

Answer: In step 1, Andrew used the commutative property

Step-by-step explanation:
In step 1 he used commutative, which is a + b = b + a
(- 5.7 + 2.2) = 2.2 + (- 5.7)

Step 2, he used associative property, not the distributive.

Step 3, he just added5.7 + 1.1 = 6.8

Step 4, he distributed the negative sign:
- (6.8) = - 6.8