s492847 s492847

01-10-2020
Mathematics

contestada

BD bisects ∠ABC, m∠ABD=(7x−1)°, and m∠DBC=(4x+8)°. Find m∠ABD.

Respuesta :

sqdancefan sqdancefan

01-10-2020

Answer:

m∠ABD = 20°

Step-by-step explanation:

The bisector makes angles ABD and BDC congruent, so ...

7x -1 = 4x +8

3x = 9 . . . . . . add 1-4x to both sides

x = 3

m∠ABD = (7x-1)° = (7·3 -1)°

m∠ABD = 20°

Answer Link

Otras preguntas

one day paul ran at a rate of 0.15 mile per minute for 40 minutes. the next day paul and Jen ran together at a rate of 0.16 mile per minute to 50 minutes. how f

WILL GIVE BRAINLIEST!!! +15 POINTS!! IF YOU RESPOND WITH TE CORRECT ANSWER IN 1 MINUTE YOU GET BRAINLY!!!! A culture of 1.75x10^18 bacteria is in a petri dish A

A construction crew has just building a road. The road is 8 2/5 kilometers long. If the crew is worked for 6 days, how many kilometers of road did they build ea

Kevin’s family has a history of diabetes. The probability that Kevin would inherit this disease is 0.75. Kevin decides to take a test to check if he has the dis

What amendment to the constitution gave women the right to vote

In addition to Pusey Rico which territories were acquired by the United States as part of the peace treaty that ended the Spanish -American war Cuba she Guam

What is c(x)=56,000+43x and R(x)=47x

How do myths impact today's society? PLEASE HELP ME WITH THE RIGHT ANSWER DUE TODAY!

Another name for the organization of African unity

Why do you think people like John Brown, who advanced more radical ideas, became popular during the 1850s?