Algebra Help 3 Promblems Explain?

1. A health department estimates that 8 vials of Malaria serum will treat 100 people. At this rate how many vials will treat 175 people?
2. A chemist wishes to make 3 liters of a 7% acid solution by mixing a 9 % acid solution and a 4% acid solution. How many liters of each solution should the chemist use?
Please Define the variables and expressions for the quantities
3. Suppose you pay 24$ for a pair of shoes that has been discounted 20% whats is the original price? Explain please,
4? The lenght of a rectangle is 7mm longer than its width . its perimeter is more than 62mm. Solve the inequality.

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One Response to “Algebra Help 3 Promblems Explain?”

  1. Epic says:

    1) 14 vials: 100/8= 12.5
    175/12.5 = 144
    2) 0.27L (9% acid solution)
    0.12L (4% acid solution)
    3) 20$
    24/6= 4 (4$ discounted)
    4) 2 sides are 12mm, 2 sides are 19mm

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