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sweet [91]
3 years ago
9

The train station of new york city and burlington, vermont, are approximately 295 miles apart. One train leaves new york for bur

lington at 9 A.M. at an average speed of 70 mph. A second train leaves burlington for new york two hours later and travels at 85 mph. At what time did they pass each other
Mathematics
1 answer:
n200080 [17]3 years ago
6 0

Answer:

8:04 am

Step-by-step explanation:

The first train travels 60 miles from 6am to 7am

So at 7am the trains are 455 - 60 = 395 miles apart

First train: Distance from town A (DA) = Velocity* time = 60t

Second train: Distance from town B (DB) = Velocity*time = 70t

So, DA + DB = 60t + 70t

395 = 130t

t = 395/130

= 3.4 hrs

= 3 hrs 4 mins

The first train left at 5am so the exact time would be 8:04am (5am +3 hrs and 4 minutes)

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Volunteers for a political campaign gave out 21/38 of their fliers. They gave out the remaining 612 fliers in another neighborho
maksim [4K]

Answer:

<u>The total number of fliers the volunteers gave out is 1,368</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Amount of fliers the volunteers gave for a political campaign = 21/38

Remaining 612 were given out in another neighborhood

2. What is the total number of fliers they gave out?

x = Total of fliers

Let's solve for x, this way:

x - 21x/38 = 612

38x - 21x = 612 * 38 (38 is the Lowest Common Denominator)

17x = 23,256

x = 23,256/17

x = 1,368

<u>The total number of fliers the volunteers gave out is 1,368</u>

6 0
3 years ago
How do you simplify this equations?
Akimi4 [234]
The answer is:

Square root of 77
—————————
22

You need to rationalize the denominator meaning that you have to get rid of the square root signs in denominator

To get rationalize the denominator you need to multiply both sides by square root of 11

(Square root of 7)(square root of 11)
——————————————————
2(square root of 11)^2

When squaring a square root it makes the square root “go away”

(Square root of 77)
——————————
2(square root of 11^2 or 122) = 2(11)

So:

The answer is

square root of 77
—————————
22

~~hope this helps~~
8 0
4 years ago
1: Find the sum of 8+ (-2)
meriva
8+(-2) =6
So the answer is 6
4 0
3 years ago
Read 2 more answers
Only answer if you are sure!!
bezimeni [28]
Answer

standard deviation

Explanation

Standard deviation is the measure of spread of data around the mean.

Mode is the most common value - which would be the mean in a normal-like distribution.

Median is the middle value when the data is ranked in ascending order (or descending even)

Skewness, is when the mode of the data falls behind the mean by a large margin.

An example is GDP, a few billionaires increase the number number and distort it, even though most people are of low or middle based income.
8 0
3 years ago
How many ways can I make 57 cents using no more than 5 pennies
ki77a [65]

Answer: 2 quarters, a nickel, and 2 pennies

Step-by-step explanation:

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4 years ago
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