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alex41 [277]
3 years ago
12

I need help on eighteen

Mathematics
1 answer:
Damm [24]3 years ago
5 0
I don't get it a all I tried fr
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In an average of 65 minutes if a train stops at three stations for two minutes each and the distance is 115 miles between stops
larisa86 [58]

Answer:

117mph

Step-by-step explanation:

Given that

Total number of stations= 3

Total average time of journey of train = 65

total stop time at three stations = 3×2 =6 min

Total distance between stops = 115 miles

as we can see

Total time train was travelling = 65- 6 =59 min

so, average speed of train can be calculated as:

Average Speed = \frac{Distance -travelled-between -stations}{Total-time-the-train-travelled}

Average Speed = \frac{115}{59} =1.95 miles/minute

To convert this speed into miles per hour (mph) multiply the above speed by 60

Average speed = 60×1.95 =117 mph

So the average speed of train is 117mph.


3 0
3 years ago
(3, -5)(0, 4)<br> Write the equation of a line using the point slope formula
Serga [27]

Answer:

y = - 3x + 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (3, - 5) and (x₂, y₂ ) = (0, 4)

m = \frac{4-(-5)}{0-3} = \frac{4+5}{-3} = \frac{9}{-3} = - 3

The line crosses the y- axis at (0, 4) ⇒ c = 4

y = - 3x + 4 ← equation of line

7 0
3 years ago
HELPP PLEASEE TELL ME WHICH IS RIGHT AND WRONG AND HELP KE EXPLAIN I DONT WANNA FAIL SUMMER SCHOOL NO LINKS OR FILE WOULD BE DEE
Alik [6]

Answer:

Orca Correct, Sea Star Wrong. Heart it if it was helpful :D

Step-by-step explanation:

11-4=7. Orca correct.

Sea star...11-4=7

Wrong its 7, not -7

7 0
3 years ago
Read 2 more answers
Which set of numbers represents the domain for the following table below
elena-14-01-66 [18.8K]

Answer:

21

Step-by-step explanation:

21

8 0
3 years ago
Jill bought a bag that 24 starbursts in it. Then she ate 1/3 of them. What is the total number of starbursts that Jill ate?
stealth61 [152]
She ate a total of 8 starbursts
7 0
4 years ago
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