5c + 3 a =25 c is the cost of children ticket and a is the cost for adult tickets.
4c +4a =28
Now multiply first equation by 4 and the second equation by 5
20c +12a =100
20c +20a = 140
Now subtract equation 2 from 1 we have -8a =-40 a = 5
Now substitute the value of a in equation 1 5c =25-15 c= 10/5 =2
children's ticket cost $2
Answer:
3600
Step-by-step explanation:
Answer:
200.96 cm³
Step-by-step explanation:
Volume of a cone = πr²h/3
Pi, π = 3.14
Radius, r = diameter/2
= 8 cm/2
= 4 cm
Height, h = 12 cm
Volume of a cone = πr²h/3
= 3.14 * (4 cm)² * 12 cm / 3
= 3.14 * 16 cm² * 12 cm / 3
= 602.88 cm³/3
= 200.96 cm³
Volume of a cone = 200.96 cm³
The value of diameter and radius of circle is 7 cm and 3.5cm.
According to the statement
we have given that the a figure of circle and we have to find the radius and the diameter of the circle.
So, We know that the
The radius of a circle runs from its center to its edge, the diameter runs from edge to edge and cuts through the center.
Here from the figure it is clear that the
Diameter of circle = 7cm
and the radius of circle we have to find
So,
Radius of circle = Diameter /2
Substitute the values in it then
Radius of circle = 7cm /2
Radius of circle = 3.5 cm.
So, The value of diameter and radius of circle is 7 cm and 3.5cm.
Learn more about the diameter and radius of circle here
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