Perimeter is the distance around a shape. You add all of the lengths to get the perimeter.
3 1/10 + 4 7/20 + 5 9/10 + 4 7/20 = 17 7/10.
This could be wrong — sorry in advance if it is.
Answer:
x=42
Step-by-step explanation:
Just do 24/32 on calculator to get .75
Then multiply .75 by 56, the side you are looking for to get 42
8x^2+6x^2+4x=138 combine like terms on left side
14x^2+4x=138 since the number of seats in the from row is just 4x, subtract 14x^2 from both sides
4x=138-14x^2 that would be the general solution, if you wanted the actual number you would have to solve for x and then multiply that value by 4 to know what "4x" is...
14x^2+4x-138=0
14x^2-42x+46x-138=0
14x(x-3)+46(x-3)=0
(14x+46)(x-3)=0
2(7x+23)(x-3)=0, since x>0
x=3 and thus
4x=12 seats
So there are 12 seats in the front row addition.
