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kolbaska11 [484]
2 years ago
11

Solve for r: -5 = 7 + 3r

Mathematics
2 answers:
larisa86 [58]2 years ago
8 0
-5=7+3r\ \ \ \ \ \ |combine\ like\ terms\\\\-5-7=3r\\\\-12=3r\ \ \ \ \ \ \ |:3\\\\r=-4
Setler79 [48]2 years ago
6 0
So,

-5 = 7 + 3r
(subtract 7 from both sides)
-12 = 3r
(divide both sides by 3)
-4 = r
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Answer:

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Hunter started with the following model to show the problem 1.45 : 5. w 3 To complete the division model of 1.45 = 5, how many h
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Each division set gives the outcome of the operation 1.45 ÷ 5 which is 0.29.

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Reasons:

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Four sets of a column of 10 cubes

Five individual cube pieces

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5 hundredths

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Each single cube can be used to represent a hundredth in 0.05

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The value of each division set is 0.2 + 0.08 + 0.01 = 0.29

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The number of hundredths in each division set is therefore; <u>D. 9</u>

Learn more about number place value here:

brainly.com/question/184672

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Time taken = 15 / s

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<u>Time taken for first half of trip :</u>

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B)

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