Question

In the proportion 1 over z equals fraction numerator begin display style 4 over 5 end style over denominator 8 end fraction which number is equal to z in the proportion?

Answer 1

For this case we have the following expression:
 1 / z = (4/5) / (8)
 Rewriting we have:
 1 / z = 4/40
 1 / z = 1/10
 Clearing the value of z we have:
 z = 10
 Answer:
 The value of z for this case is given by:
 z = 10