Nicole has counted the change in her piggy bank and discovered that she has a total of 87 nickels, dimes and quarters worth a total of $11.50. She has the more dimes than nickels. How many of each coin does she have?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.