kponcedeleon001 kponcedeleon001

13-03-2018
Mathematics

contestada

Please answer this and thank you

If DE=4x+10, EF=2-1, and DF=9x-15, find DF.

Please answer this and thank you If DE4x10 EF21 and DF9x15 find DF class=

Respuesta :

jcherry99 jcherry99

13-03-2018

I hope that 2-1 means 21.

DE + EF = DF
4x + 10 + 21 = 9x - 15
4x + 31 = 9x - 15
31 = 9x - 4x - 15
31 = 5x - 15
46 = 5x
x = 9 1/5 = 9.2

You want 9x - 15
9*9.2 - 15
82.8 - 15
67.8 <<<<< answer.
If I have given the wrong meaning to 2-1 (which could mean 1) leave another note and I will correct my work.

Answer Link

Otras preguntas

Find the midpoint of the segment with endpoints of (1, 4) and (-2, 6) and enter its coordinates as an ordered pair. If necessary, express coordinates as fractio

What do vacuoles and golgi bodies have in common?

How many elements are in the set {A,B,C}?

Which of these fasteners would not have been found on a pilgrim's clothes? a. Buckle b. Button c. Zipper d. Tie

A triangle has angles that measure 49° and 84°. What is the measure of the third angle? A. 35° B. 47° C. 131° D. 133°

The main city of new netherlands was new orleans. true or false

What does this phrase imply: everyone regardless of ability, race, creed, gender,sexual orientation has the same privileges under government/law?

Given the literal equation ab/a+b = c , with b = –1 + a, what is the value of c if a = 5? A-20/9 B-25/9 C-4 D-11

Instructions:Select the correct answer. Dexter's dad runs a toy store. His current yearly sales report shows that he sold 4,694 toys in the last three months. I

find all the real cube roots of 0.000064