A quadrilateral has two angles that measure 70 and 60. The other two angles are in a ratio of 4:19 what are the measures of those two angles.

We can obtain the answer from the Angle sum property of a quadrilateral.

Angle sum property of a quadrilateral =360 degrees.

So, 70+60+4x+19x=360 degrees

130+23x=360degrees

23x=360-130,230

23x= 230 divided by 23, 10

X=10

Angles are:-

4x=4*10=40

19x=19*10=190

x coordinate is none

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.