There are two tables shown below. Which table shows a constant rate?

Option B

Step-by-step explanation:

To calculate the rate of the table is given by the expression,

Rate =

For table A,

    x              y                                            

    2             10                 -                       -              -

    3             15           15 - 10 = 5        3 - 2 = 1      

    5             20          20 - 15 = 5       5 - 3 = 2    

    8             25          25 - 20 = 5      8 - 5 = 3    

Therefore, rate is not constant in this table.

For table B

    x              y                                            

    3              9                 -                       -              -

    5             15           15 - 9 = 6        3 - 5 = 2      

    8             24          24 - 15 = 9       8 - 5 = 3    

   10             30          30 - 24 = 6     10 - 8 = 2    

Therefore, table B shows a constant rate of 3.

Option B is the correct option.

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

happy to

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