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Alenkasestr [34]
3 years ago
7

How would I solve this

Mathematics
1 answer:
irinina [24]3 years ago
7 0

Answer:

  • 570 mph
  • 610 mph

Step-by-step explanation:

Let x represent the speed of the slower plane. The faster plane's speed is then x+40. The sum of speeds is ...

   x + (x+40) = 1180

  2x = 1140 . . . . subtract 40

  x = 570 . . . . . .divide by 2

  x+40 = 610 . . . . the speed of the faster plane

The two speeds are 570 mph and 610 mph.

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The force F between 2 objects is inversely proportional to the square of the distance, d between them. The force is 0.36 newtons
LenaWriter [7]

Answer:

0.73 N to 2 dp.

Step-by-step explanation:

F = k/d^2   where k is a constant , F = force and d = distance.

Substituting:

0.36 = k / (6)^2

k = 36*0.36 = 12.96 s the equation is F = 12.96 / d^2.

When d = 4.2 :

F = 12.96 / 4.2^2

F = 0.73 Newtons to 2 dp.

5 0
3 years ago
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adoni [48]

Solution:

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6 0
4 years ago
Read 2 more answers
Which has more liquid ,1 gallon of milk or a 12 pack of mountain Dew? how much more?
tatuchka [14]
It depends on the size of Mountain Dew bottles! It differs whether it is a 12 oz or a 16 oz bottle. I need more information to solve it. 
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3 years ago
In a recent survey, 78% of students at Lincoln Middle School said they plan to attend a camp this summer. Write this percent as
prohojiy [21]

Answer:

<em>0.78</em>

Step-by-step explanation:

From the question, we are to represent 78% as a decimal

78%  = 78/100

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78/100 = 0.78

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3 years ago
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sergeinik [125]
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Hope this helped you!
Have a great day.
5 0
4 years ago
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