The perimeter of a parallelogram is the distance around the outside of the parallelogram. A parallelogram has four sides with opposites sides being congruent. The formula for finding the perimeter is Side A + Side B + Side A + Side B.
Hi you can change the scientific notation to standard notation. Then go from there
2x + 3y = 12 (1st)
5x − y = 13 (2nd) ---> y = 5x - 13
Substitute y = 5x - 13 into (1st) equation
2x + 3(5x - 13) = 12
2x + 15x - 39 = 12
17x - 39 = 12
17x = 51
x = 3
substitute x = 7 into y = 5x - 13
y = 5x - 13
y = 5(3) - 13
y = 15 - 13
y = 2
Answer
solution x = 3 and y = 2
High=42/5; long =50/3
area of this is = 42/5 ×50/3=140
half of the wall is = 140/2=70
answer is 70
