What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3? Question 5 options:

40

55

231.5

235

40

Step-by-step explanation:

5 times 3 is 15

15 times 2 is 30

4 times 2.5 is 10

30 plus 10 equals 40

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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