CPM Homework Help : CC2 Problem 5-9

Find the missing values on the diagram below. Assume that each line is evenly divided.

$\qquad \;a \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \quad \;\;\, 144\\ \; \overbrace{\qquad \qquad \quad \;} \quad \qquad \qquad \qquad \qquad \quad \; \overbrace{\qquad \qquad \qquad \qquad \qquad \;\,}$
A line segment, from 0% to 100%, with ten equal sections. A bracket includes the first section, labeled 10 %. A bracket includes the first 2 sections, labeled a. A bracket includes the first 5 sections, labeled b. A bracket includes the last 4 sections, labeled 144 and c.
$0\% \;\, \underbrace{\qquad \;\;} \qquad \qquad \qquad \qquad \qquad \quad \quad \;\;\;\, \underbrace{\qquad \qquad \qquad \qquad \qquad \;\, } \; 100\%\\ \quad \quad \; 10\% \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \qquad \;\; c \\ \quad \;\;\, \underbrace{\qquad \qquad \qquad \qquad \qquad \qquad \quad }\\ \qquad \qquad \qquad \quad \;\;\;\, b$

Hint:

If the line is evenly divided, then each interval represents $10\%$ of the total value.
How many intervals are contained within $b$ ?

Answer:

There are 5 intervals which means that $b$ represents $50\%$ .

Hint 2:

Follow the same method for $c$ .

More Help:

$144$ represents $40\%$ of the total value. So how much does $20\%$ represent?