Area of a cone is v=1/3 pi r2^h
V=1/3 (3.14)(10)2^(30)
V=1/3 (3.14)(100)(30)
V=9420/3
V=3140
Answer : 2 dogs.
Explanation : If there were 2dogs there would be 8 legs. That means 8 legs belong to 4 chickens. 2 dogs and 4 chickens is 12 eyes. If the number of fish is double the number of chickens, there would be 8 fish. 8 fish is 16 eyes. 16 fish eyes + 4 dog eyes and 8 fish eyes is 28 eyes.
Answer:
The width of rectangle w = 4 units
Step-by-step explanation:
We are given:
Width of rectangle = w
Length of rectangle = w+ 4
Area of rectangle = 32 units
We need to find width of the rectangle
The formula used is: 
Putting values and finding width of rectangle

We need to solve this quadratic equation to find width (w)
We will use factorisation and break the middle term.

Since width of rectangle can't be negative, so rejecting w=-8
Therefore, the width of rectangle w = 4 units
Explanation:
1). 50 x 2 = 100 ; 23 x 2 = 46 (shade 46 squares)
2). 20 x 5 = 100 ; 11 x 5 = 55 (shade 55 squares)
Answer:
$615.54
Step-by-step explanation:
Step 1
Write your problem.
577.98 x 6.5% = ?
Step 2
Convert the % to a decimal:
6.5% to 0.065
Step 3
Rewrite the problem with decimal replacing the percentage.
Now the problem looks like this:
577.98 x 0.065 = 37.56
This problem gives the amount of the tax.
Step 4
Add the original price with the tax amount:
577.98 + 37.56 = $615.54 (total cost)