We know that the total is 180 degrees of the lines.
To find x:
(5x+20)+(4x-11) = 180
x=19
To find y, input the value of x into the equation 4x-11 since this equation is equal to 2y+19
4(19)-11 = 65
2y+19 = 65
y=23
Nine is the last choice ten is adding all brass then all percussion and divide as much as possible then that's your answer.
so the answer is three
Think it's 400
7/8 x 3200= 3200/8= 400 400x 7 =2800
3200 - 2800= 400
so 1/8 of 3200 = 400
Answer:
32 × 3
96 squares..........................
It means, Whatever the Value of x is, add 2 to it. ( example x=5, it would be 5=2=7
so y-7)