Well any number you add can be irrational need more information.
Answer:
15 ml
Step-by-step explanation:
If we mix 1 part concentrate and 5 parts water, we have 6 parts in total.
To create 90ml medicine, <em>how many "6 parts" are there?</em>
There would be 90/6 = 15 total "6 parts".
Each of the "6 parts's" 1 part is concentrate, so concentrate would be 1 * 15 = 15 ml.
<u>In ratio:</u>

Answer:
what was the answer?? I am also needing to know!

Volume of cone will be ~


Let's find the volume of cone with ~
And as we know, volume of cone is equal to ~
now, let's plug in the values and find the volume ~
Volume of cone is 462 cm³ = 462 ml