Thursday, October 21, 2010

Island Puzzler

Hawaii is the only state completely made up of islands. Rhode Island has ______(A)_____ islands but lies primarily on the U.S. mainland. _____(B)______ of the 50 states border an ocean.

 (A)  If a circle is divided into 180 equal parts, how many parts must be removed in order for 80% of the circle to be left over?

                                            2 
(B) Find x if (x+1)squared  = 400 and x = lxl.

Answer this question correctly, showing your calculations and have your name entered into the raffle at the end of the month for a great prize!

2 comments:

  1. A. 100-80=20, 20%=1/5, 180/5=36 Answer:36

    B. √400=20, 20 -1= 19 Answer:19

    ReplyDelete
  2. A. 36 islands
    100 percent - 80 percent=20 percent
    180 times .20(for twenty percent)= 36
    B. 19 states
    x+1squared=400 x=1x1
    400/20
    x+1=20
    -1 -1
    x=19

    ReplyDelete