Answer:
(-2, -4)
Step-by-step explanation:
–2x + 2y = -4
3х + Зу = -18
Divide the first equation by 2
–2x/2 + 2y/2 = -4/2
-x +y = -2
Divide the second equation by 3
3х/3 + Зу/3 = -18/3
x + y = -6
Add these equation together
-x +y = -2
x + y = -6
-------------------
0x + 2y = -8
2y = -8
Divide each side by 2
2y/2 = -8/2
y = -4
Now we need x
x+y = -6
x-4 = -6
Add 4 to each side
x-4+4 = -6+4
x = -2
Answer:
730 days
Step-by-step explanation:
1 year=365 days
2 x 365= 730
Answer:
YAH WELL I WONT HELP YOU
" GET SMART DUMMY" LOLTHATS WHAT YOU SIAD TO ME :)
Step-by-step explanation:
Answer:
11.25
Step-by-step explanation:
if a cube has 6 equal sides, you want to multiply 5.25 by 6 to get the surface area for the entire cube.
Right triangle, so one angle = 90 and sum of the other 2 angles = 90
so
71x - 1 + 20x = 90
91x = 91
x = 1
<A = 20(1) = 20
answer
<A = 20 degrees