Mathematics, 12.03.2020 22:03 cielo2761
Nigel makes the claim that x=6 is the solution to the equation 4(5x−12)−7x=5x. His work to support his claim follows.
Given: 4(5x−12)−7x=5x
Step 1: 20x−48−7x=5x
Step 2: 20x−7x−48=5x
Step 3: 13x−48=5x
Step 4: 13x−13x−48=5x−13x
Step 5: 0−48=−8x
Step 6: 6=x
Which of the following justifications can be used to justify and support Nigel's work?
Select all justifications that are correct.
Step 4 is justified by the Symmetric Property.
Step 6 is justified by the Associative Property.
Step 5 is justified by the Property of Additive Inverses.
Step 1 is justified by the Distributive Property.
Step 2 is justified by the Commutative Property.
Step 5 and step 3?
Answers: 1
Mathematics, 21.06.2019 21:00
If a is a nonzero real number then the reciprocal of a is
Answers: 2
Mathematics, 21.06.2019 22:30
Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell
Answers: 1
Nigel makes the claim that x=6 is the solution to the equation 4(5x−12)−7x=5x. His work to support h...
Physics, 05.05.2021 21:40
Geography, 05.05.2021 21:40
Mathematics, 05.05.2021 21:40
Mathematics, 05.05.2021 21:40
Mathematics, 05.05.2021 21:40
Social Studies, 05.05.2021 21:40
Mathematics, 05.05.2021 21:40
Computers and Technology, 05.05.2021 21:40
Chemistry, 05.05.2021 21:40
English, 05.05.2021 21:40