Write an equation, in slope-intercept form, of the line that is perpendicular to y = 2x - 5 and passes through the point (2, -3).

y+3 = (-1/2)(x-2)

Step-by-step explanation:

the slope of a perpendicular line is -1/m where m is the slope of the original line, so your slope of the new equation is -1/2

point slope form: y-y1 = m(x-x1)

y+3 = (-1/2)(x-2)

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24