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3 years ago

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Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 115 miles per

hour. The westbound train travels at 95 miles per hour. How long will it take for the two trains to be 546 miles apart? Do not do any rounding.

1 answer:

pochemuha3 years ago

8 0

5639393939393oddkdkdkdldl

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-onsider x + 4 = x + 8. What values could be substituted for x to make this a true

devlian [24]

Answer:

No because upon subtracting x on both sides you obtain a false equation of 4=8.

The problem:

What are x values that satisfy:

x+4=x+8?

Step-by-step explanation:

No number can be substituted into x+4=x+8 to make it true.

There is no number that you can find such that when you add 4 to it will give you the same as adding 8 to it.

Also if you subtract x on both sides you obtain the equation 4=8.

4=8 is not true so x+4=x+8 is never true for any x.

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3 years ago

PLEASE HELP ASAP WILL GIVE BRAINLIEST!!!!

max2010maxim [7]

Answer:

Step-by-step explanation:

y intercept is -6

the slope is already in it's fraction form but if you want it back to whole number it's y=1.33x-6

the slope is positive

Some plots you can put are (6, 2) and (12, 10)

Just start at (0, -6) and counts 4 up and 3 right

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3 years ago

You go to an arcade and purchase a card with game credits. After playing 5 games you have 33 credits left. You play 4 more games

Amanda [17]

Answer:

$y=-3x+48$

Step-by-step explanation:

We will use slope-intercept form of equation to write our equation. The equation of a line in slope-intercept form is: $y=mx+b$ , where m= Slope of the line, b= y-intercept.

To write the equation that represents the number of credits y on the cards after x games, we will find slope of our line.

We have been given that after playing 5 games we have 33 credits left. We play 4 more games and we have 21 credits left. So our points will be (5,33) and (9,21).

Let us substitute coordinates of our both given points in slope formula: $m=\frac{y_2-y_1}{x_2-x_1}$ ,

$m=\frac{21-33}{9-5}$

$m=\frac{-12}{4}=-3$

Now let us substitute m=-3 and coordinates of point (5,33) in slope intercept form of equation to find y-intercept.

$33=-3\cdot 5+b$

$33=-15+b$

$33+15=b$

$48=b$

Upon substituting m=-3 and b=48 in slope-intercept form of an equation we will get,

$y=-3x+48$

Therefore, our desired equation will be $y=-3x+48$ .

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3 years ago

A rectangle has a length of 2 m and a width of 40 cm what is the perimeter of the rectangle ( show your work)

sweet [91]

Answer:

0.05 im pretty sure to my calcutor

Step-by-step explanation:

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3 years ago

What is the simple rational expression for 10b + 100 ________ b + 10

PtichkaEL [24]

Answer:

10 ( b+10)

Step-by-step explanation:

10 b + 100

Factor out a 10

10 * b + 10 * 10

10 ( b+ 10)

hope it helps !!!!

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3 years ago

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