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crimeas [40]
3 years ago
12

If 3x = y-5 and x = -4, then y=

Mathematics
2 answers:
sveta [45]3 years ago
6 0
3( -4 ) = y - 5
-12 = y - 5
y = -7
Mekhanik [1.2K]3 years ago
3 0

3x=y-5\ \ \ \ |+5\\3x+5=y\to y=3x+5\\\\\text{substitute the value of x to the expression}\\\\y=3(-4)+5=-12+5=-7

Answer: y = -7.

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Answer: Yes

Step-by-step explanation:

The ratios of number found to the number of days are all equal to 14 fossils per day.

(Plus I just did this and got it wrong but saw the right answer which is this)

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2 years ago
Luke has 48 books.He puts 7 books in a box.How many boxes can he fill?explain how you interpreted the remainder
Alex17521 [72]
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3 0
3 years ago
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mariarad [96]

Answer:

32

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You must divide 288 by 18 and then double the answer you get.

7 0
3 years ago
Which rate is faster:a bird traveling at a constant rate of 2 kilometer per hour or an insect travelinf at a constant rate of 1,
Alla [95]
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3 years ago
Give two different sequences of three transformations that would map PQR onto EFG given that PQR=EFG.
Gre4nikov [31]

9514 1404 393

Answer:

  1. Translate P to E; rotate ∆PQR about E until Q is coincident with F; reflect ∆PQR across EF
  2. Reflect ∆PQR across line PR; translate R to G; rotate ∆PQR about G until P is coincident with E

Step-by-step explanation:

The orientations of the triangles are opposite, so a reflection is involved. The various segments are not at right angles to each other, so a rotation other than some multiple of 90° is involved. A translation is needed in order to align the vertices on top of one another.

The rotation is more easily defined if one of the ∆PQR vertices is already on top of its corresponding ∆EFG vertex, so that translation should precede the rotation. The reflection can come anywhere in the sequence.

__

<em>Additional comment</em>

The mapping can be done in two transformations: translate a ∆PQR vertex to its corresponding ∆EFG point; reflect across the line that bisects the angle made at that vertex by corresponding sides.

3 0
2 years ago
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