The bottom of Ignacio's desktop is 74.5cm from the floor. Ignacio 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
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To find out how many clockwise rotations of the knob on the chair Ignacio needs to raise his legs to a specific height, you can use the following steps:
1. Calculate the height difference between the bottom of Ignacio's desk and the tops of his legs: desk_height - leg_height = height_difference
In this case, the desk_height is 74.5cm and the leg_height is 49.3cm. So, the height_difference is 74.5cm - 49.3cm = 25.2cm.
2. Determine the number of complete rotations needed to raise Ignacio's legs to the desired height: height_difference / rotation_height = number_of_rotations
Since each clockwise rotation of the knob raises Ignacio's legs by 4.8cm, the rotation_height is 4.8cm. So, the number_of_rotations is 25.2cm / 4.8cm = 5.25 rotations.
However, since Ignacio cannot perform fractional rotations, we need to round the number_of_rotations to the nearest whole number. In this case, Ignacio would need to make 5 full clockwise rotations on the knob in order to raise his legs to the desired height.