John C.
asked • 09/17/19Given: B and C trisect AD
AB=-5x+20
AC=4y-2
CD=x+2y-4
Find AD
AD= 15
I need help with the work
Mark M. answered • 09/17/19
Mathematics Teacher - NCLB Highly Qualified
AC = 2AB
4y - 2 = 2(-5x + 20)
4y - 2 = -10x - 40
AC = 2CD
4y - 2 = 2(x + 2y - 4)
4y - 2 = 2x + 4y - 8
-2 = 2x - 8
6 = 2x
3 = x
Can you complete and answer?
Sam Z. answered • 09/17/19
Math/Science Tutor
5x+20=x+2y-4
4x+24=2y
y=2x+12
ad=2(4y-2)=8y-4
=8(2x+12)-4
=16x+96-4
=16x+92
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John C.
Sorry I forgot to add the answer is 15 I am stuck on how to get it09/17/19