Step-by-step explanation:
Hey there!!
Given,
[tex] \frac{3}{z} = \frac{2}{5} [/tex]
Cross multiply.
15 = 2z
Therefore, z= 15/2
Hope it helps..
Answer:
z = 7.5
Step-by-step explanation:
3/z = 2/5
then:
3*5 = 2z
15 = 2z
15/2 = z
z = 7.5
Check:
3/7.5 = 2/5