Gwen has a piece of wood that is 8.25 feet in length. Gwen needs to cut pieces that are 0.75 feet in length. How many pieces 0.75 feet in length can Gwen cut from the piece that is 8.25 feet in length? *

11 pieces of 0.75 feet in length can gwen cut from the piece that is 8.25 feet in length.

Step-by-step explanation:

The given is,

             Gwen has a piece of wood that is 8.25 feet in length

             Gwen needs to cut pieces that are 0.75 feet in length

Step:1

         The formula to calculating number of pieces are,

                                      ................................(1)

             where,  T = Total length of the wood

                           L = Length of the wood piece

                           n = Number of pieces  

Step:2

        Substitute the values of T and L in equation,

             From given,

                       T = 8.25 feet

                        L = 0.75 feet

        Equation becomes,

                                 = 11

                             n = 11 pieces

Result:

            11 pieces of 0.75 feet in length can gwen cut from the piece that is 8.25 feet in length.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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step-by-step explanation: