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

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

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