Acertain number was increased by 5 then decreased by 3 than halved the result was 0.3 less than the original number

Step-by-step explanation:

         Let x = the number

Then x + 5 = the number increased by 5

    x + 5 - 3 = then decreased by 3

½(x + 5 - 3) = then halved

      x - 0.3 = 0.3 less than the number

Check:

½(2.6 + 5 - 3) = 2.6 - 0.3

          ½(4.6) = 2.3

               2.3 = 2.3

OK.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

step-by-step explanation:

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