2x+3y=12
3x-y=7
use subsituttion
make one of the equations equal to a placeholder
3x-y=7
subtract 7
3x-7-y=0
add y
3x-7=y
subsisute 3x-7 for y in first equation
2x+3(3x-7)=12
2x+9x-21=12
11x-21=12
add 21 to both sides
11x=33
divide both sides by 11
x=3
subsitute x for 3 in any equation
3x-7=y
3(3)-7=y
9-7=
2=y
x=3
y=2
0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0+0 hope that helps
2.38 Miles
4188 Yards
And it's already in feet
The answer is 110 and the answer for E is 2hrs
Answer:
Step-by-step explanation:
1) First, find the slope of the given line. Since the y is isolated in the equation and it is in a format, it must be in slope-intercept form. Remember that the number in place of , or the coefficient of the x-term, represents the slope of a line in slope-intercept form. So, the slope of the given line is .
Lines that are perpendicular have slopes that are opposite reciprocals. So, the slope of the new line will be .
2) Now, use the point-slope formula and substitute the appropriate values for , , and . This gives the equation of the line in point-slope form. (We can convert it to slope-intercept form later.)
Since represents the slope, substitute in its place. Since and represent the x and y values of one point the line intersects, substitute the x and y values of (6,4) into the equation as well. With the resulting equation, isolate y to find the equation of the line in slope-intercept form: