math

You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42.

a. Write an equation you can use to find the sales tax rate which is r. what is the equation so I tried all things I could think of but it doesn't work like 42=40+r

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  1. Solving your equation gives you $2.00.

    2/40 = 0.05 = 5%

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    Ms. Sue
  2. You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42.

    a. Write an equation you can use to find the sales tax rate rr.
    An equation is 42=42=
    .What should the equation be?

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  3. 40=40+40r

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  4. I got the Answer as 40+40r

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  5. Answer= 42=40r+40

    r=5%

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  6. Answer: 42=40+40r

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  7. The answer if you have big ideas math is none of those.

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  8. If you have big ideas it is 40+40r

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  9. 42= 40+40r

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  10. Yes it is 40+40r

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