Step-by-step explanation:
First step:
Calculate a slope.
The formula of a slope:

The slope-intercept form of an equation of a line:

m - slope
b - y-intercept
We have the points (5, -4) and (-1, 8). Substitute:

Put the value of the slope and the coordinates of the point (5, -4) to the equation of a line:

<em>add 10 to both sides</em>

Finally:

Answer:
25.
Step-by-step explanation:
We can write the expression as 10x + 2.5x where x is the tens digit.
So reversed we have 25x + x.
- and 25x + x - (10x + 2.5x) = 27
22.5x - 9x = 27
13.5x = 27
x = 2 and 2.5x = 5.
So the number is 25.
Answer:
350 people can fit into 42 rooms
Step-by-step explanation:
So we can write it as a relation fraction equation:

Where:
x represents the people can fit in 42 rooms

Therefore, <u>350 people can fit into 42 rooms.</u>
I hope it helps you!
Answer:
a bar graph
Step-by-step explanation:
I think donno if it is right.