mnas8020 mnas8020

03-12-2017
Mathematics

contestada

Angle A is twice the size of Angle B.Their sum is 87 degrees.Find x

(2x-1) belongs to angle b

Respuesta :

lesliekolleroxrkcf lesliekolleroxrkcf

03-12-2017

a=2b
a+b=87
a=4x-2
a=87-2x+1
4x-2=88-2x
6x=90
x=15
b=29
a=58

Answer Link

Otras preguntas

shayla says that one kilometer is equal to one million millimeters. is She correct? explain why?

Two ships leave whittier, Ak at 7 AM. The first ship sails towards Valdez on a 54° course at a constant rate of 36 mi/h. The second ship sails towards Knight is

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 types of units are used to describe area?

what two large alliances took shape before the beginning of world war 1

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

Two famous Elizabeth Blackadder paintings ?

Which of the following changes will decrease the rate of collisions between gaseous molecules oftype A and B in a closed container? A. decrease the volume of t

a bicycle wheel travels about 82 inches in 1 full rotation. What is the diameter of the wheel, to the nearest inch? (use 3.14 for pi)

The last of Wilson's Fourteen Points called for