Let number of miles be x
<span>when is </span>
<span>.5x + 25 = .25x + 30 </span>
<span>times 4 </span>
<span>2x + 100 = x + 120 </span>
<span>x = 20 </span>
Given:
A solution of 60% fertilizer is to be mixed with a solution of 21% fertilizer to form 234 liters of a 43% solution.
To find:
The quantity of the 60% solution in the mixture.
Solution:
Let x be the quantity of the 60% solution and y be the quantity of the 21% solution.
Quantity of mixture is 234. So,

...(i)
The mixture has 43% fertilizer. So,

Multiply both sides by 100.
...(ii)
Using (i) and (ii), we get




Divide both sides by -39.


Putting this value in (i), we get


Therefore, 132 liters of the 60% solution must be used.
Answer:
r/n
22.91%
33.33%
Step-by-step explanation:
To calculate the experimental probability, we must divide the number of times the event occurred by the total number of events, that is:
r / n
r = 11, n = 48
11/48 = 0.2291
In other words, the experimental probability is 22.91%
for the theoretical probability it would be the quantity that there is of that object among the total quantity of objects, in this case it would be:
1/3 = 0.3333
that is, the probability is 33.33%