jugoslav

Ok, fair enough.

r = sqrt( 25pi / pi) = 5              PM = 6          RM = 3

I do it this way:           (r + OM) * (r - OM) = PM * RM

                                   r² - (OM)² = PM * RM

                                  25 - (OM)² = 18

                                   (OM)² = 7

                                    OM = √7   

Hello, Melody! Could you please delete this post. When the question is not correct, then the answers do not make much sense. Thanks!

Melody, look at the 2nd row of your answer:

                                     (r + OM) * (r - OM) = r² - (OM)²   

You are right! I made a mistake. PM should be 6 NOT 7.

Correction:         Line segment PM = 6 units  

I apologize to all of you!

x + y = 82

x + 4x - 3 = 82

x = 17

y = 4x - 3 = 65

A rectangular rug has a perimeter of 240 inches. The length is 12 inches more than twice the width. Find the length and width of the rug.

w + 2w + 12 = 120

w = 36

Length = 2w + 12 = 84

Instead of inches squared should be cubic inches  

2. Kadin makes a snowman by stacking snowballs of radius 2 inches, 3 inches, and 5 inches. Assuming all his snowballs are spherical, what is the total volume of snow he uses, in cubic inches? Express your answer in terms of pi.

Total volume     V = (4/3*pi*2³) + (4/3*pi*3³) + (4/3*pi*5³)

                         V = 640 pi / 3             ( 670.206 inches squared)

If you use all 3 snowballs to make a single snowball, its radius will be 5.4288 inches.

                                                        V = 4*pi*5.4288³ / 3 = 670.206 inch³

It's not hard; it's very simple.

OC = 32        CB = 36  

AC = [ 2(OC + CB)] - CB = 100 

Here's my answer.

z = 180 - 84

5y - 49 + 84 = 180

5y = 145

y = 29