In terms of its radius
, the volume of the balloon is

The diameter
is twice the radius, so that in terms of its diameters, the balloon's volume is given by

Differentiate both sides with respect to time
:

The diameter increases at a rate of
. When the diameter is
, we have

or about 23,562 cc/min (where cc = cubic centimeters)
Answer:

Step-by-step explanation:
just means
.
So

Answer:
4,16
Step-by-step explanation:
36 buttons = 12×12 square inches
1 button = 12×12÷36=4 square inches
4 buttons=4×4=16square inches
Answer:
A = 32
Step-by-step explanation:
A = ½ (a + b) h
A = ½ (3 + 10) 4
A = (3+5)4
A = (8)4
A = 32

Substitute the given value of y into the equation y=7x+15

Move the variable to the left-hand side and change its sign

Collect like terms

Divide both sides of the equation by -5

Substitute the given value of x into the equation y=2x

Solve the equation for y

The possible solution of the system is the ordered pair (x,y)
