Question

The area of a blackboard is

Answer 1

Answer:

3/2

Step-by-step explanation:

unit rate  describes how many units of the first type of quantity corresponds to one unit of the second type of quantity so:

1.1/3= 3.1+1÷3=4/3

8/9÷4/3=3/2

Answer 2

Answer:

There are 6 square yards of blackboard per 2 square yards per poster.

Step-by-step explanation:

The unit rate refers to how many area units of the poster are in the blackboard.

To find this rate, we just have to divide the area of the blackboard by the area of the poster.

$B=1\frac{1}{3}=\frac{4}{3}$

Where $B$ represents the area of the blackboard in square yards.

$P=\frac{8}{9}$

Where $P$ represents the area of the poster.

Now, the ratio is

$r= \frac{B}{P}=\frac{4}{3} \div \frac{8}{9}=\frac{4}{3} \times \frac{9}{8}=\frac{36}{24}\\r=\frac{6}{4}=\frac{3}{2}=1.5$

This mean that the unit rate is 1.5, that is, there are 6 square yards of blackboard per 2 square yards per poster.