The formula for the volume of a right circular cone is V =

. In solving for the volume of the first french fries cones V =

= 75.398

. In solving for the height of the second french fries cones with a new radius of 4, the formula is rearranged to h =

=

= 1.5 in or inches. The height of the new cones will be 1.5 inches.
The answer is 110 adult tickets. Let x= student tickets and y= adult tickets.
We know that the total tickets sold was 440. That means the total number of student tickets (x) plus the total number of adult tickets (y) equaled 440. Putting it into an equation, you get:
x+y=440
Now we know that the amount of student tickets is equal to three times as many adult tickets, so in an equation that is seen as:
x=3y
In order to solve for one variable, plug in 3y for the x value of the first equation to get:
y+3y=440
then solve:
4y=440
y= 440/4
y=110
The total number of adult tickets sold was 110 tickets.
(This method used in math is technically called "Solving Systems of Equations", just fyi).
Answer: 11 and 24
Step-by-step explanation:
Given
There are 35- 50 cents and 20 cents coins
The total of them is 10.3 euros
Suppose no of 50 cents coins is x and 20 cents is y
so we can write

Also,

Solving (i) and (ii) we get

There are 11 fifty cent and 24 twenty cents coins
Answer:
Your last page is correct. Hope I boosted your confidence ^-^
Step-by-step explanation: