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kirill [66]
2 years ago
9

Please help! 30 points ((:

Mathematics
2 answers:
RideAnS [48]2 years ago
6 0

Answer:

a = 2.7

Step-by-step explanation:

(2/3) ( 6a + 9 )  = 16.8         => the Distributive law

KiRa [710]2 years ago
4 0

Hello from MrBillDoesMath!

Answer:

a = 2.7

Discussion:

(2/3) ( 6a + 9 )  = 16.8         => the Distributive law

(2/3) (6a) + (2/3)9 = 16.8    =>

4a              + 6         = 16.8   => subtract 6 from both sides

4a                             = 16.8 -6 = 10.8     (divide both sides by 4)

a  = 10.8/4

   = 2.7

Thank you,

MrB

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No. of ways to arrange the 8 jobs = 8!

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