
Choice Board for AS #1: Applications
Presentation
•
Mathematics
•
9th Grade
•
Medium
Catherine Hanley
Used 8+ times
FREE Resource
8 Slides • 4 Questions
1
Choice Board #1:
Applications
2
Find the value of x in the figure to the right
3
What information do we need to work out this problem?
The sum of the angles in a triangle is 180 degrees...
in other words the angles add up to 180
4
All angles add up to 180 so we start there!
(7x - 11) + (2x - 3) + (5x -2) = 180
5
Multiple Select
(7x - 11) + (2x - 3) + (5x -2) = 180
Which terms would be combined with 7x?
-11
2x
-3
5x
-2
6
Multiple Select
(7x - 11) + (2x - 3) + (5x -2) = 180
Which terms would combine with -11?
7x
2x
-3
5x
-2
7
Add the x terms and then add the constants
8
Multiple Choice
What is your first step when solving 14x - 16 = 180?
add 16
subtract 16
divide by 14
multiply by 14
9
First you undo the addition with subtraction and then you undo the multiplication with division
10
Let's do one together
I will share my screen as I do the work out
11
Solve for x when the perimeter is 166 units
We need to first label all four sides
Next, add all the sides and set equal to 166
12
Fill in the Blanks
What is the value of x?
Type answer...
Choice Board #1:
Applications
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