Ask Question
23 February, 06:50

Lucy's fish tank has 14 liters of water in it. She plans to add 5 liters per minute until the tank has at least 49 liters. What are the possible numbers of minutes

Lucy could add water?

Use t for the number of minutes.

Write your answer as an inequality solved fort.

+5
Answers (1)
  1. 23 February, 07:19
    0
    V = 14 + 5t

    14 + 5t ≥ 49

    Lucy has to add water at least for 7 minutes.

    Step-by-step explanation:

    There were 14 liters of water in Lucy's fish tank. She was about to add water at the rate of 5 liters per minute until there were at least 49 liters of water in the tank.

    If t represents the number of minutes she adds water and V is the volume of water in liters in the fish tank, then we can write the equation as

    V = 14 + 5t ... (1)

    Now, this volume of water in the tank V must be at least 49 liters.

    So, 14 + 5t ≥ 49 is the required inequality.

    ⇒ 5t ≥ 35

    ⇒ t ≥ 7

    So, Lucy has to add water at least for 7 minutes. (Answer)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Lucy's fish tank has 14 liters of water in it. She plans to add 5 liters per minute until the tank has at least 49 liters. What are the ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers