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Mathematics 14 Online
OpenStudy (anonymous):

Which expression is equivalent to 6a + 12? 6(a + 6) 3(3a + 9) 6(a + 9) 2(3a + 6)

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

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 :)

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)

OpenStudy (anonymous):

@KendrickLamar2014

OpenStudy (future_einstein):

5.75(c+a)

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