You use the equation given to solve the problem.
x= 4x9
X=36
The four is for the amount of people. The nine is the cost.
For the questions where you have to find out how much each person paid you would have to divided the amount by the number of people.
So, 36/9= 4.30
Therefore each person paid $4.30.
(Hope this helps you)
19.8416 pounds in 9 kilograms
Area of pond:
A=
r=1,5m
A=3,142*1,5*1,5=7,0695
Area of pond with path
B=
r=50 cm+1,5m=0,5m+1,5m=2m
B=3,142*2*2=12,568
Area of path:
12,568-7,0695=5,4985=5,50
By definition the area of a rectangle is:
A = w * l
The perimeter is:
P = 2w + 2l
Where,
w: width
l: long
Substituting values:
300 = w * l
80 = 2w + 2l
Solving the system of equations we have:
l = 30 m
w = 10 m
Answer:
The length and width of the field are:
l = 30 m
w = 10 m