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Ne4ueva [31]
3 years ago
11

PLEASE HELP with this Geometry question

Mathematics
1 answer:
Gnoma [55]3 years ago
3 0

Step-by-step explanation:

DE = 5x-2

DF = 3(x+3)

3(x+3) = 3 + 5x-2

3x+9= 5x+1

2x=8

x=4

DE=5×4-2=18

DE=18

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What is the check digit, d, for the UPC bar code number shown below? 0-24679-36163-d
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Answer:

The check digit is 7.

Step-by-step explanation:

Check digit can be calculated by the following way:

  • Add all the digits except the check digit that is the last digit on the   right side.

             Total = 0 + 2 + 4 + 6 + 7 + 9 + 3 + 6 + 1 + 6 + 3

             Total = 47

  •      Add the digits at odd starting from left, double this amount and          finally add it with the total from step 1.

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       Sum =  18

      Doubling the sum = 36

     Adding it with the total from step 1, we get

        Total = 36 + 47

        Total = 83

  •  Subtract the last digit of the total from step 2 with 10, and this will be check digit.

        Check Digit  = 10 - 3

        Check Digit  = 7

3 0
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garri49 [273]

Answer:

Step-by-step explanation:

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