Determine whether each pair of lines is parallel, perpendicular or neither 17. 2x-5y=7 and 15y-5=6x

Strategy:

Put both equation into "point-slope" form to compare slopes:

y = mx + b

where

m is the slope

.

2x-5y=7

-5y=-2x+7

y = (2/5)x - 7/5

and

15y-5=6x

15y=6x+5

y=(6/15)x+5/15

y=(2/5)x+5/15

.

Since both lines have the same slope, the lines are

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this