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AURORKA [14]
3 years ago
12

Factor the expression: 84x – 12x

Mathematics
2 answers:
liberstina [14]3 years ago
6 0
Subtract 12x from 84x = 72x
iris [78.8K]3 years ago
3 0
Subtract 84x and 12x from each other to simplify or factor the expression and you get 72x
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Mr. Wallace needs to divide his class or 23 students into 9 groups. Each group can have two or three students. If a is the numbe
IRINA_888 [86]

Answer:

d)  Mr.Wallace can use the following equations:

    a + b = 9

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Here, the total number of students = 23

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Each group can have 2 or 3 students.

a is the number of  groups of 2.

⇒ Total students in a groups  = a x (Number of  student in each group)

= a x 2 = 2 a

b is the number of groups of 3

⇒ Total students in b groups  = b x (Number of  student in each group)

= b x 3 = 3 b

So, according to the question:

Total number of groups formed = 9

⇒ a + b = 9

Total number of students  = 23

or Number of students in  ( a  group + b group ) = 23

⇒ 2 a + 3 b = 23

Hence, Mr.Wallace can use the following equations:

a + b = 9

2 a + 3 b = 23

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3 years ago
Taylor climbed a tree and is sitting on one of the branches deciding if she wants to jump. She weighs 45 kilogram and is sitting
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Answer:

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3 years ago
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