Finding a Missing Value Using a Proportion
A larger rectangle has a length of 18 inches and width of 8 inches. A smaller rectangle has a length of x inches and width of 3 inches.
Write a proportion and then solve to find the missing measure of the reduced rectangle.

What two ratios can be used in the proportion?

What is the value of the missing measure?

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62