If you lived in a hobbit house and had a round window that needed? trim, how much trim would be needed to go around a window with a radius of 4.2? feet?

To find out how much trim you would need for the window, you would need to calculate the Circumference.

Step-by-step explanation:

Circumference is the length around a circle and is calculated using the following formula.

In which C is the circumference and r is the radius. Since we already know the radius all we have to do is plug it into the equation and solve for C.

The window has a Circumference of 26.389 feet so you would need that amount of trim to fit the area around the window.

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tickets for the harlem globetrotters

show at michigan state university in

2010 cost $16, $23, or, for vip seats, $40.

total revenue = 16x + 23y + 40z

if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, sales of all three kinds of tickets would

total $46,575.

16x + 23y + 40z = 46575, how many of each kind of ticket would

have been sold?

solve for x, y and z

x − 9z = 0

x − y − z = 55

16x + 23y + 40z = 46575

x = 1170

y = 985

z = 130

welcome!

4 + 5 7/9= 9 7/9

step-by-step explanation: