A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Which property match with the equation?
Properties:
Addition property of equality, Subtraction property of equality, Multiplication property of equality, Division property of equality, Simplifying, and Distributive property.
Equations:
9u2 = 81 (subtraction property I think?)
9u27+27 = 81+27
9u = 54
9u/9 = 54/9 (division property I think?)
u = 6
anonymous
 one year ago
Which property match with the equation? Properties: Addition property of equality, Subtraction property of equality, Multiplication property of equality, Division property of equality, Simplifying, and Distributive property. Equations: 9u2 = 81 (subtraction property I think?) 9u27+27 = 81+27 9u = 54 9u/9 = 54/9 (division property I think?) u = 6

This Question is Closed

phi
 one year ago
Best ResponseYou've already chosen the best response.2the first equation looks like it has a typo

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ah yes, It's supposed to be 9u27 = 81 !

phi
 one year ago
Best ResponseYou've already chosen the best response.2going from 9u27+27 = 81 + 27 to the next line 9u= 54 looks like simplifying

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Both look like simplifying?

phi
 one year ago
Best ResponseYou've already chosen the best response.2if you started with a line 9(u3)= 81 then going to 9u27= 81 would be distributing

phi
 one year ago
Best ResponseYou've already chosen the best response.2The question is a bit goofy, because it the the "step" you take to get from one line to the next that uses the property. I guess we label the "result line" with the property. like this 9u+2727 = 81+27 9u = 54 Simplify

phi
 one year ago
Best ResponseYou've already chosen the best response.2can you post your labels for each line?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes. Basically the question is asking which equation matches with which property.

phi
 one year ago
Best ResponseYou've already chosen the best response.2I meant, what is your answer? It looks like they start with an equation, and they "solve for u" and they want the reason that allows you to write the next line as you work out the solution

phi
 one year ago
Best ResponseYou've already chosen the best response.2For example if you started with a line 9(u3)= 81 then the reason you are allowed to write the next line as 9u27= 81 would be distributive property

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not sure how to answer the question then.

phi
 one year ago
Best ResponseYou've already chosen the best response.2distribute in English means "hand out" and in math 9(u3) we can "hand out" the 9 to each term inside the parens (we multiply 9 times each term inside the parens) in other words, 9(u3) = 9u 3*9 = 9u27 because we use the distributive property

phi
 one year ago
Best ResponseYou've already chosen the best response.29(u3)= 81 9u27 = 81 < Distributive Property 9u27+27 = 81+27 9u = 54 9u/9 = 54/9 (division property I think?) YES u = 6

phi
 one year ago
Best ResponseYou've already chosen the best response.2now to get from the second line to the third line: 9u27 = 81 < Distributive Property 9u27+27 = 81+27 < what did we do here ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Subtraction property? And the third to fourth is simplify?

phi
 one year ago
Best ResponseYou've already chosen the best response.2what is different between this line: 9u27 = 81 and this line: 9u27 +27 = 81 +27 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0They add 27 to both sides

phi
 one year ago
Best ResponseYou've already chosen the best response.2adding 27 to both sides is ok, it keeps the equation true. (if we add 27 to only 1 side, that does not work) To remember that it is ok to add the same thing to both sides, people gave a name to the rule that says it's ok: addition property

phi
 one year ago
Best ResponseYou've already chosen the best response.29(u3)= 81 9u27 = 81 < Distributive Property 9u27+27 = 81+27 < Addition Property of Equality 9u = 54 <Simplify 9u/9 = 54/9 (division property I think?) YES u = 6 < Simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But we're using simplify twice.

phi
 one year ago
Best ResponseYou've already chosen the best response.2Yes. I think this is a problem where you have to show how to get from one line to the next, and you have to pick out the correct reason. In this case, we don't use every reason in the list.

phi
 one year ago
Best ResponseYou've already chosen the best response.2and we use the same reason two different times. That's ok
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.