03-02-2020
Mathematics

contestada

Can someone explain the steps for how do solve this?! I can’t get it right

Can someone explain the steps for how do solve this I cant get it right class=

Respuesta :

fatemehkorea fatemehkorea

03-02-2020

Answer:

x = 50

m∠D = 150°

m∠F = 30°

Step-by-step explanation:

supplementary angles are two angles whose sum is 180°

∠D + ∠F = 180°

3x + x - 20 = 180

3x + x = 180 + 20

4x = 200

x = 200/4

x = 50

D = 3*50 = 150

∠D = 150°

F = 50 - 20 = 30

∠F = 30°

Answer Link

Otras preguntas

what is 1/2 plus 9/10

Which decimal is equal to 7/10?A. 0.71B. 0.7C. 0.07D. 0.071

From the equations 7a = 4 and 7a + 4b = 12, one can conclude that b is? Please explain the work behind the solution

What is the value of the expression shown below when a=51, b=2, and c=17? 3(a\c)^2

In a right-angled triangle, the side opposite the right angle is unknown, how do you find out the unknown length? (Hypotenuse I think)

A 36-tooth gear turns three times. It is connected to a 12-tooth gear. How many times does the 12-tooth gear turn?

what type of monkey starts with an h?

How did world war 1 contribute to the collapse of the Russian monarchy?

what types of units are used to describe area?

Which statement is true of a placenta? a. The placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother. b. The placenta passe