Is equal to 19 u add the 9 plus the ten so u get 19
Answer:
4x + (5x+18) = 180-81=99
9x+18=99
9x=99-18=81
x=9
Step-by-step explanation:
Answer:
x = -3
y = 7
Step-by-step explanation:
x + 3y = 18
-3x - 12y = -75
multiply first equation by 4
4 × (x + 3y) = 18 ➡ 4x + 12y = 72
now add the two equations up
4x + 12y - 3x -12y = 72 - 75 (-12y will eliminate 12y)
x = -3
Answer:
$500/$11.41m=43.82m
10*11.91=43.82 perimeter
119.1 area
43.8212 m is the perimeter. Each side is 21.91 m giving and area of 480 m^2
For a given perimeter (here 43.82 m) the rectangle with the greatest area is the square.
