Ratios and Proportional Relationships
Richie Rich spent $25 on 4 pieces of candy. Find the unit rate.
$6.25 per piece
Add.
12 + (-8)
4
Convert into an expression. Use "x" as your variable
6 times a number plus 3 equals 27
6x + 3 = 27
Divide (convert to a decimal)
3/8
0.375
Find the perimeter of a square with a side length of 6 inches.
Label units!
24 inches
Find the equivalent rate.
3 X
___ = ___
8 12
X= 4.5
Multiply.
(-6) x (-7)
42
Solve for x. Show your work!
6x + 3 = 27
x=4
Add. Your final answer should be in simplest form
3/4 + 1/8
7/8
What are complementary angles?
Give an example of two angles that are complementary.
Angles that add up to 90 degrees.
Must include example.
A proportional graph must include what two things? Draw an example.
Must have example.
*Goes through the origin
*Forms a straight line
Divide
-72/ 12
-6
Solve for x. Show your work!
4x - 10 = 26
x=9
40% of the 7th grade voted to watch Shrek. If there are 120 7th grade students, how many voted to watch Shrek?
48 students
What are supplementary angles? Give an example of three angles that are supplementary.
Angles that add up to 180 degrees.
Must include example.
Richie Rich spent $23.95 on 5 bags of Takis. Find the unit rate.
$4.79 per bag
Subtract
13.5 - (-7.9)
21.4
Solve for x. GRAPH your solution.
x-10 > 5
X>15
Must include graph.
45 out of 80 8th graders wanted to go to the park before the school year ended. What percent is that?
56.25%
The area of a rectangle is 60 square inches.
Its base is 12 inches. Find the height.
Show work!
5 inches
Draw an example of a proportional table. Include 5 x-values and 5 y-values.
Give your table a title!
Hint: y=kx
Example must include a constant!
Subtract. Leave in simplest form!
-5/8 - (-7/8)
Solve for x. Graph your solution
6x-3< 27
x<5
Must include graph
60% of the 8th grade students voted to go to Six Flags as their class trip. If 84 8th graders voted to go to Six Flags, how many total 8th grades are there?
140
An angle measures 50 degrees. Find the measure of its vertical angle.
50 degrees