A certain high school geometry class is made up of freshmen and sophomores. The ratio of
freshmen to sophomores in that class is 3:4. If there are 12 sophomores in the class, what is
the total number of students in the class?

21 Students

Step-by-step explanation:

Step 1: Create a chart listing the 3 to 4 ratio

Step 2: Go down the chart doubling each side till you get 12 on one side and 9 on the other

Step 3: Add

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !