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Aleonysh [2.5K]
3 years ago
6

If b-a=c-b=d-c, what is d-b

Mathematics
1 answer:
Ber [7]3 years ago
3 0
I think it is d-b=c-a, I'm not really sure
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A passenger train left Austin, Texas at 12:00 PM bound for Dallas, exactly 210 miles away; it traveled at a steady 50 miles per
olya-2409 [2.1K]

Answer:

  1. 3 hours
  2. 1 hour 45 minutes
  3. 300 miles

Step-by-step explanation:

1. The trains are moving toward each other at a total speed of 50 +20 = 70 miles per hour. Together, they cover the 210 mile distance in ...

  time = distance/speed

  time = 210 mi/(70 mi/h) = 3 h

The trains collide after 3 hours.

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2. The fly is closing with the freight train at a speed of 100 +20 = 120 miles per hour. Together, the fly and the train cover the initial 210 mile distance in ...

  (210 mi)/(120 mi/h) = 7/4 h = 1 hour 45 minutes

The fly first meets the oncoming freight train after 1 h 45 min.

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3. The fly is flying for all three hours before the trains collide, so, at 100 miles per hour, will fly 300 miles.

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3 years ago
Name the type of transformation that maps the pre-image, ABC, to the image, A'B'C'. show your work​
AleksAgata [21]

Answer:

reflection across y translate 1 unit to the right translate 6 units down

Step-by-step explanation:

6 0
3 years ago
600 can be written as 2º * b c
Trava [24]

Answer:

653

Step-by-step explanation:

5 0
3 years ago
2X+4=20+5X<br>A)1/2 B)-1/2 C)2 D)-2​
Nookie1986 [14]

Answer:

It seems that your options aren't correct as the right answer is -5.3333... (recurring)

Step-by-step explanation:

1)  2x + 4 = 20 + 5x   (subtract by the smallest unknown)

  -2x                  -2x

2)  4        = 20 + 3x

    -20      -20    (now subtract each side by 20 as we want to leave the unknown on one side and another number on the other side.

3) -16       = 3x   (Divide each side by 3)

   ÷3        = ÷3

4) -5.33333... = x

<h3>Now we have found x but if you're unsure you can substitute to see if your answer is correct.</h3><h3>2 x -5.3333 + 4 = -6.6666</h3><h3>20 + 5 x -5.3333= -6.6665</h3><h3>Our answer is correct! (When answers are rounded, it is equal to the same thing).</h3>
7 0
3 years ago
Danny got a raise and now makes $58,965.95 a year. Round this number to the
Fantom [35]

Answer:

c) ten thousand dollars

Step-by-step explanation:

6 0
3 years ago
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