68. add the two measures then subtract from 180.
Answer:
To do this I am pretty sure your going to have to do some hard calculations.
<u><em>Lets go deeper</em></u>
<u><em></em></u>
so because it is a rectangle every angle is a right angle according to the property of a rectangle.
A right angle is 90 degress
So 8x+18=90
90-18=72
8x=72
72/8=9
x=9
Feel free to do brainlest if correct
32
——- (after reducing the fraction)
105
Explanation: find reciprocal of divisor:
21/12 : 12/21
Multiply dividend:
8/15 divide21/12=8/15x12/21=
8 x12
———= 96/315
15x21
Let x= number of 3 cent stamps
let y=number of 5 cent stamps
x+y=8
3x+5y=36
3x+5y=36 3x-5y=36
-3(x+y=8) . -3y-3y=-24
2y=12
y=6
x+6=8
-6 . -6
x=2
There will be 2 3 cent stamps and 6 5 cent stamps
