Algebra

1. Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 25 tons of rock to cover the area. If each ton cost $40 and each tree is $65, what is the minimum number of trees you can buy with a budget for rock and trees of at least $2,750? Write an inequality that illustrates the problem and solve. Express your answer as an inequality and explain how you arrived at your answer.


I am not very good at trying to write inequalities. I always think I have it right then I always find out I am wrong. Any help would be appreciated.

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asked by Anna
  1. let the number of tons of rock be x
    let the number of trees be y

    40x + 65y ≤ 2750

    also x ≤ 25

    Explanation: I just translated the "English" into "Math"

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    posted by Reiny
  2. Thank you so very much this is a big help

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    posted by Anna
  3. Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 40 tons of rock to cover the area. If each ton cost $70 and each tree is $94, what is the minimum number of trees you can buy with a budget for rock and trees of at least $4,500? Write an inequality that illustrates the problem and solve. Express your answer as an inequality and explain how you arrived at your answer.

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    posted by lucy

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