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galina1969 [7]
4 years ago
12

A table is going to be painted. How much less surface area of the table will be painted if the underside remains unpainted? leng

th=22in,width=20in, height=1in
Mathematics
2 answers:
STALIN [3.7K]4 years ago
7 0
440 will be remained out of 880
Allushta [10]4 years ago
4 0

length=22in,width=20in, height=1in

Total Surface are of a table = 2(length * width) + 2(width * height) + 2(height * length)

= 2(22*20) + 2(20*1) + 2(1*22) = 880 + 40 +44= 964 square inches

the surface area of underside table is legth * width = 22* 20 = 440

the underside remains unpainted, so we subtract 440 from total surface

964 - 440 = 524 square inches

440 square inches will remain unpainted

524 square inches will be painted




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Answer:

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Explanation:

1. Boy's Heights.

Using the information you can create a frequency table:

Heigth    Frequency

40                   0

41                     1

44                    3

46                    3

48                    2

50                    3

52                    4

54                    4

56                    0

58                    0

60                    0

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2. Girl's Heights.

Similarly, create your frequency table:

Height        Frequency

40                      0

41                       0

42                      0

44                      2

46                      3

48                       1

50                      3

52                       4

54                       3

56                       4

58                       0

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                      ======

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<em>Which is a true statement for most of the data in each plot?</em>

<u><em>Most of the data in each plot are greater than 48.</em></u>

  • Count the dots or add the frequencies from the tables.

  • For boys, the frequency of points greater than 48 is: 3 + 4 + 4 = 11 which is more than half (there are 20 dots).

  • For girls, the frequency of points greater than 48 is: 3 + 4 + 3 + 4 = 14, which is also more than half.

Hence, it is correct that most fo the data in each plot are greater than 48.

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