A round swimming pool has a circumference of 66 feet Carlos snags to buy a rope or put across the diameter of the pool the rope costs $0.45 per foot , and Carlos need 4 feet more than the diameter of the pool. how much will Carlos pay for the rope ?!
The circumference of a circle is the diameter times pi. So, 66 ft = pi x d. 66 divided by pi is roughly 21, so the diameter is 21 ft. 21 + 4 = 25. 25 x $0.45 = $11.25
The answer would be $33.3 because if you added 66+4+4 that would be 74. 74•45 (45 as in cents) and that would equal 333 and add a decimal point to make it 33.3