Montell opened 17 stores in each of 9 cities, with a total of 153 stores. To calculate the number of stores in each city, a proportion is set up: 153/9 = 17x/1. Cross multiplying and solving gives x = 81, so there are 81 stores in each city. Another example calculates 45% of 9 by setting up the proportion: 9/100 = 45x/1. Cross multiplying and solving gives x = 20, so 45% of 9 is 20. The document concludes with a template for a unit reflection, prompting the reader to discuss what they liked, disliked, found hardest, and easiest about the material.

1. Proportions
by Montell Jones

2. Montell opened up 17 stores in every city if there is 9 cities
and there are 153 stores are in each city how many stores
are in one city?
Step 1:set up your proportions
with the information from the problem.
153
9*153=17x
1377=17x
x=81
/17/17
stores
cities
17
9 x
Step 2:then you cross
multiply and when you have the
answer alone with a variable.
Step 3:then you divide both
sides by the number that is with the
variable then you will have the answer.

3. 45% of what is 9?
Step 1:set up
proportions
9
100*9=45x
900=45x
X=20
/45/45
45
100 x
Step 2:then you cross multiply and
when you get the answer you
multiplied with and a variable.
Step 3:then you divide and
you have your answer.

4. Unit Reflection
• I liked…
• I didn’t like…
• The hardest part was…
• The easiest part was…