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Rom4ik [11]
3 years ago
8

Two trains leave stations 432 miles apart at the same time and travel toward each other. One train travels at 80 miles per hour

while the other travels at 100 miles per hour. How long will it take for the two trains to meet?
Mathematics
1 answer:
Tanzania [10]3 years ago
4 0

Answer:

The trains will meet in 2.4 hours.

Step-by-step explanation:

To cover 432 miles at 180mph: 432mi/180mph=2.4 hours

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What is EG? <br><br> I need help
n200080 [17]

Answer:

30

Step-by-step explanation:

y/x = 30/(x + 10)

(y + 12)/x = 54/(x + 10)

y/x + 12/x = 54/(x + 10)

30/(x + 10) + 12/x = 54/(x + 10)

30x + 12(x + 10) = 54x

30x + 12x + 120 = 54x

120 = 12x

x = 10

EG = x + x + 10

EG = 10 + 10 + 10

EG = 30

6 0
3 years ago
A Sunday newspaper lists the 10 used car prices for a foreign compact, with age x measured in years and selling price y measured
Masteriza [31]

Question:

A Sunday newspaper lists the 10 used car prices for a foreign compact, with age x measured in years and selling price y measured in thousands of dollars. A Sunday newspaper lists the 10 used car prices for a foreign compact, with age x measured in years and selling price y measured in thousands of dollars.

Picture of data can be found in the picture attached.

Answer:

Slope = -1.71

Intercept = 22.05

Step-by-step explanation:

Equation of a line usually takes the general form :

ŷ = mx + c

Where :

m = slope or gradient

c = intercept

Inputting the data into a linear regression calculator ;

The output is : ŷ = -1.70872X + 22.04985

Comparing the output to the general formula;

The slope (m):

m = -1.70872 = -1.71(2 decimal places).

The intercept (c):

c = 22.04985 = 22.05(2 decimal places).

7 0
4 years ago
Help find the radius
elena55 [62]

Answer:

12.5

Step-by-step explanation:

the radius of a circle is half of the diameter

8 0
3 years ago
HELP!
Anna [14]

Answer:

The period is smaller than π/2 so the only possible answer would be 2π/5

Frequency is the amount of cycles it completes in 2π, so it's 5

7 0
3 years ago
Can some one help please i don’t get it
ella [17]
I think the first one

4 0
3 years ago
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