Correct answers only !
do the ratios 12/6 and 10/5 form a proportion?

Yes. Divide by 6 for 12/6. 12/6= 2 6/6= 1

which equals to 2. Divide by 5 for 10/5= 2, 5/5= 1. Which equals to 2.

they are simplified

step-by-step explanation:

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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