Answer:
Length of each shelf is 0.45 meters
Step-by-step explanation:
Given


Required
Determine the length of each shelf
This is calculated by dividing the total length by number of shelves as thus:



Hence;
<em>Length of each shelf is 0.45 meters</em>
1: 144 because
4 * 15 = 60 ft total height = 720 in total height
5: 720 = 1: 144
<span><span>To find the area of a rectangle, multiply the length by the width. The formula is:</span><span>, where is the area, is the length, is the width, and · means multiply.</span><span>A square is a rectangle with 4 equal sides. To find the area of a square, multiply the length of one side by itself. The formula is:</span><span> or , where A is the area, s is the length of a side, and · means multiply.</span></span>
No I do not think that 12/60 and 16/40 are equivalent because onec you reduce both of the fractions it does not equal.