What is the slope of a line parallel to the line - 3x + 5y = - 10?

Parallel lines will have the same slope

the slope is usually denoted by "m"

now the slope-intercept form of a line is given by

y=mx+b

the standard form of a line is given as

Ax+By=C

converting standard to slope intercept

By=-Ax+C - - - subtract Ax to both sides

y = - A/B x + C/B - - - divide B to both sides

m = - A/B

Y=0.6x+5 is the slope of a line parallel to the line - 3x+5y=-10