hellgoodbye21 hellgoodbye21

18-10-2018
Mathematics

contestada

Please help...

If ABCD ≅ QRST, m<A = x - 10, and m<Q = 2x - 30, what is the m<A?

A. 10
B. 20
C. 30
D. 40

Respuesta :

24-10-2018

If ABCD ≅ QRST, then m∠A = m∠Q. Therefore we have the equation:

x - 10 = 2x - 30 |+10

x = 2x - 20 |-2x

-x = -20 |change the signs

x = 20

Answer: B. 20

Answer Link

Otras preguntas

What was the result of administrative weaknesses under the Articles of Confederation?

is 678.05 greater than 67.805

During the Red Scare, many were accused of being Communist, even without evidence to prove it. This was known as: A. the Truman Doctrine. B. the Fair Deal. C. M

What is 161 divisible by

Each person in the United States eats about 65 fresh apples each year. Based on this, how many apples do 3 families of 4 eat each year.

if the amount of gasoline available for sale suddenly drops for some reason, but the amount people want to consume remains unchanged, what will happpen to gasol

Most Midwestern cities were established near a. mountains. c. skyscrapers. b. water. d. manufacturing plants.

What did the Chinese exclusion act and the dillingham report indicate about nativist reaction to immigration

During world war 1, how did war-focused economies change the way industry operated

What energy source does electrolysis use?