3. In Sam's math class there are 15 boys and 13 girls. Wat is the ratio of girls
to boys? *

The ratio is 15:13 (15 boys to 13 girls).

There are 28 students in all

13/28 of the students are girls.

Step-by-step explanation:

For the ratio, you simply need to put the information on the correct side of the colon [:]. The total amount of students is calculated by adding the numbers together. Finally, the fraction of girls in the class is found by adding the number of girls above the number of total students.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .