Please help with these five problems, it's all solving systems by the elimination method. 2x + 3y = -12
-x - 3y = 18
x=
y=

7x - 5y = -24
-9x + 5y = 18
x=
y=

2x - 3y = -9
-2x + 3y = 18
x=
y=

2x + 10y = 54
-7x - 10y = -89
x=
y=

5x -4y = -23
-5x + 9y =8
x=
y=

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches