Notice the picture below
thus, we know the total area is 70 square meters
now, if we add those areas, it should give us 70
thus
(5x)+(40)+(5x)=70 solve for "x"
The property of this equation is associative property
Answer:
x=3/4
Step-by-step explanation:
Look at the picture so you understand how To solve it.
Answer:
54 m
Step-by-step explanation:
Alrighty, what have we here: an area of 162 m² and a width of 9m.
So: A=162m², W=9m, let's draw this: (see the screenshot attached)
Using the formula for area (Area = width x length) we see that:

Thus: (equating to L by dividing both sides by 9m)
⇒ 
Now we have all of our dimensions, we can use the formula for the perimeter to calculate it:

And there we have our answer.
234 = a + s s = students a = adults
2a = s
after you get the equations you solve. plug 2a into the above equation.
so u get
234 = a + 2a
234=3a then divide 3 from each side
78 = a
so 78 adult tickets were sold