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vagabundo [1.1K]
1 year ago
14

Rewrite in simplest terms: –8(9r – 1) — 9(-8r + 2)

Mathematics
1 answer:
NemiM [27]1 year ago
8 0

Solution

Step 1

Expand the brackets

8(9r-1) - 9(-8r + 2)

72r - 8 +72r -18

Step 2

Bring like terms together

72r + 72r -8 -18

Step 3

Sum and get the expression in its simplest for after factorization

144r -26

After factorization we will have in its simplest form the following answer

2 (72r -13)

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4 years ago
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
In a math competition, every question that is answered correctly gets a score of 4. Wrong gets a score of -2. and not answered g
11111nata11111 [884]

Answer:

Step-by-step explanation:

First we need to find the score of the incorrect answers and the questions that were not answered.

Score for the incorrect answers = 4*(-2) = -8

Score for the questions not answered = 6*(-1) = -6

Score for the questions answered correctly = 106 - [ (-8) + (-6) ]

                                                                       = 106 -[-14]

                                                                        = 106 + 14

                                                                        = 120

Number of questions answered correctly = total score for questions that were answered correctly ÷ score of 1 correct answer

= 120 ÷ 4

= 30

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2 years ago
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Step-by-step explanation:

see attached for solution

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