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Nezavi [6.7K]
3 years ago
12

PLEASE HELP AND EXPLAIN!!! (ASAP)

Mathematics
1 answer:
lora16 [44]3 years ago
3 0
Let's look at the difference in speed between the two: it's 39-15.6=23.4 km/h

(we can just subtract this because they are traveling in the same direction) - this means that it's as if the slower train (the freight) was in place and the passenger train was traveling at 23.4 km/h
No, the freighter left 3.9 hours earlier, during which it traveled

15.6*3.9=60.84 km

So they will meet when the passenger train will catch up on those 60.84 km.

It does it with 23.4 km/h so it will need:
\frac{6084}{2340} =2.6

So the freighter will be travellinf for 2.6 more hours than the other train - a total of (2.6+3.9=6.5) 6.5 hours!



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Solve for x: 3 − (2x − 5) < −4(x + 2)
Firdavs [7]

Answer:

A. x < -8 (first option)

Step-by-step explanation:

3 - (2x - 5) <  - 4(x + 2)

3 - 2x + 5 <  - 4x - 8

8 - 2x <  - 4x - 8

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2x <  - 16

\boxed{\green{x <  - 8}}

6 0
3 years ago
What is the midpoint of equation if N(10, −14) and P(−16, −4)?
meriva

Answer:

The answer is

<h2>( - 3 , - 9)</h2>

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

M = (  \frac{x_1 + x_2}{2} , \:  \frac{y_1 + y_2}{2} ) \\

where

(x1 , y1) and (x2 , y2) are the points

From the question

N(10, −14) and P(−16, −4)

The midpoint is

M = ( \frac{10 - 16}{2}   \: , \:  \frac{ - 14 - 4}{2} ) \\  = (  - \frac{6}{2}  \: , \:  -  \frac{18}{2} )

We have the final answer as

<h3>( - 3 , - 9)</h3>

Hope this helps you

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