Which expression is equivalent to 6a + 12?
6(a + 6)
3(3a + 9)
6(a + 9)
2(3a + 6)
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OpenStudy (anonymous):
@Future_Einstein
OpenStudy (future_einstein):
2(3a+6)
OpenStudy (anonymous):
can you explain how you got this answer please? :)
OpenStudy (future_einstein):
yeah brb in 2 minutes
OpenStudy (anonymous):
ok
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OpenStudy (future_einstein):
ok, so...
OpenStudy (kendricklamar2014):
\[2(3a+6) ~is ~right\]
OpenStudy (future_einstein):
you start by simplifying each one. you multiply the number out side the perentheisis by the ones inside seperatley. for example 10(3+6) wouls simplify to 30+60. 2 x 3a is 6a. and 2 x 6 is 12. so its 6a + 12
OpenStudy (kendricklamar2014):
Here's why:
\[2(3a+6) \]is simplified to:
\[(2)(3a)+(2)(6)\] which equals:
\[6a + 12\]
OpenStudy (anonymous):
ok :)
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OpenStudy (anonymous):
last question! :)
OpenStudy (anonymous):
A theater company charges $5.75 per ticket for people of all age groups. If c represents the total number of children who bought tickets and a represents the total number of adults who bought tickets, which expression best represents the total money earned by the company from the sale of tickets?
5.75c + a
c + 5.75a
11.5(c + a)
5.75(c + a)