Estimate 80.8 / 8.9 using compatible numbers.

The estimate expression value is    

Step-by-step explanation:

Given : Expression

To find : Estimate the expression using compatible numbers?

Solution :

Step 1 - Write the expression,

Step 2 - Estimate the numerator,

Step 3 - Estimate the denominator,

Step 4 - Substitute in the expression,

Therefore, The estimate expression value is

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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