Darryl wants to add enough water to 8 gallons of a 10% bleach solution to make a 5% bleach solution. Which equation can he use t
2 answers:
Answer: To achieve a 5% bleach solution, he needs to add 8 gallons of water.
Step-by-step explanation:
Let 'x' represent the gallons of water he is meant to add.
We know that
The total current volume is 8 gallons
Containing a 10% bleach solution, which is i.e.
The goal is to dilute it to a 5% bleach solution by incorporating additional water.
Consequently, the equation can be defined as,
Therefore, he should add 8 gallons of water to create a 5% bleach solution.
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Answer:
Elia took hour to cycle from her residence to the beach,
hour to return, and traveled
kilometers from her home to the beach and
kilometers on her way back.
Step-by-step explanation:
1. Let b represent the hours Elia spent cycling to the beach, and p the time taken for the return trip to the park. The combined time for both rides equals 1 hour, represented as
b + p = 1
2. With a constant speed of 18 km/h on her way to the beach, in b hours, she covered 18b kilometers. She then rode back from the beach to the park at a steady speed of 15 km/h, which amounted to 15p kilometers.
Since the distances for both trips are identical, we establish
18b = 15p
3. Solve the two equations:
Using the first equation
Insert this solution into the second equation
Elia took hour to cycle to the beach,
hour on her return, and covered
kilometers going to the beach and
kilometers returning to her home.