Let x= #1 number
let y= #2 number
We would get xy-3 as the answer
(7x -7) + (6x +6) = 90
take away the parenthesis: 7x - 7 + 6x + 6 = 90
combine like terms: 13x - 1 = 90
add 1 to both sides: 13x = 91
divide both sides by 13: <span>x = 7.
Now: substitute x = 7 into the angles: the first angle is 42 degrees, the second angle is 48 degrees</span>
The two straight edges of the shape correspond to the original circle's radius, 5.5 cm. We're told this sector has area 30.25 cm^2, which we will use to determine the measure of the central angle subtended by the arc (the remaining edge of the shape).
The complete circle has an area of 
, which corresponds to a "central angle" of 
. Then if 
is the central angle of this sector, we have
The complete circle has a circumference of 
. Then if 
is the length of the sector's arc, we get
So the sector has a total perimeter of
5.5 cm + 5.5 cm + 11 cm = 22 cm
OK it could be x*3-9/6+ 5/8*5 it could be
