How many liters of a 20% solution of acid should be added to 10 liters of a 30% solution of acid to obtain a 25% solution?

liters

10 urgent points

plz

10 liters

Step-by-step explanation:

Let

x ----> liters of a 20% solution of acid

we know that

The number of liters of a 20% solution of acid, multiplied by 0.20 (20% in decimal form) plus 10 liters of a 30% solution of acid multiplied by 0.30 (30% in decimal form) must be equal to the amount of (x+10) liters multiplied by 0.25 (25% in decimal form)

so

The linear equation that represent this problem is equal to

solve for x

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

what is the answer to this