Answer:
y=32 and x=12
Step-by-step explanation:
you do the second one first. cross multiply to get 5y=160 then divide by 5 on both sides to get y=32. fill in the y with 32 in the first equation, then cross multiply on that one too. you should get 8x=96. divide by 8 on both sides to get x=12. And there are your answers :)
I hope i explained this well enough for you to understand :)
All of the angles add up to 180 degrees, so take the two angles already present and add them, then subtract the sum from 180. Hope this helps!
The radius of Earth is 6378.1 km,
which is 2981.1 km longer than the radius of Mars.
The radius of Mars is 3397 km.
Answer:
Cool
Step-by-step explanation:
The first step to solving this is to solve the equation for x
x = - 21/5 - y
4x + 4y = -14
now,, substitute the given value of x into the equation "4x + 4y = -14"
4( - 21/5 - y) + 4y = -14
next,, solve the equation for y
y∈∅
since this system has no solution for y, your answer is (x,y)∈∅
let me know if you have any further questions
:)