There are 11 sixth grade students and 7 eighth grade students in the art club. The number of seventh grade students in the art club is half the combined number of sixth and eighth grade students in the club. What is the ratio of seventh grade students in the club to the total number of students in the art club, written as a fraction in lowest terms?

1:3

Step-by-step explanation:

(11+7)/2=9 9:27 and simplify it. There really isn’t much explaining but hope this helps.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

hdjd

step-by-step explanation: