The sprinkler is located in the middle of the circular pattern created by the sprinkler therefore the distance from the center to the end of the circular pattern is called the RADIUS
note:
area of a circle =
1519.76 = 3.14 *
therefore = 1519.76 / 3.14 = 484
therefore radius ( r ) = = 22 ft
The sprinkler is 22 feet away from the spread water
X = mary's shells g = 1 1/4x + 5 n = 1 1/2x+ 1 g = n
1 1/4x + 5 = 1 1/2x + 1 5/4x + 5 = 3/2x + 1...multiply by common denominator of 4, this will get rid of fractions...however, this is optional...u can work with fractions if u wish. 5x + 20 = 6x + 4 5x - 6x = 4 - 20 -x = - 16 x = 16....so Mary has 16 shells