Review of Equations
Presentation
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
+8
Standards-aligned
Jennifer Cariasini
Used 5+ times
FREE Resource
6 Slides • 12 Questions
1
2
This should already be in your notes, but if not, time to get it there now!
Translating words
3
Dropdown
4
Multiple Choice
Which expression was translated from: 4 decreased by y
4y
5
Fill in the Blanks
Write an algebraic expression that represents: 3 times m minus 4
6
Match
Match the expression and it's given statement
w dollars per 4 notebooks
the quotient of 20 and w
3 times w minus 1
34% of w
2/3 of w
w/4
20/w
3w-1
0.34w
(2/3)w
w/4
20/w
3w-1
0.34w
(2/3)w
7
Now let's try equations~
Remember, the difference between an expression and an equation is the equals sign!
For example: 2x + 3 is an expression; 2x + 3 = 6 is an equation.
8
Multiple Choice
Translate this sentence into an equation: 4 increased by 9 is equal to x
9
Multiple Choice
Translate this sentence into an equation: m is the product of 4 and 3
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Fill in the Blanks
Okay, translate this one: 6 times b is 42
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(That means we're going to use substitution e.g. plugging in numbers for variables)
Next we're evaluating expressions & formulas
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b(a-4)/c
If a = 6, b = 3, c = 2
Evaluate 3x-7
If x = 4 and y = 2
13
Fill in the Blanks
Okay, now you do one. If x = 3 and y = -2
Evaluate 2x + 2y
14
Fill in the Blanks
One more for good measure: if a = 7 and b = 9
Evaluate a + b/3
15
Remember the overtime formula?
The overtime formula:
Gross pay = Hourly Wage (40) + 1.5(hourly wage)(overtime hours)
This can be re-written as: G = H(40) + 1.5(H)(O)
G= gross pay; H= hourly wage; O=overtime hours
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Fill in the Blanks
Using the overtime formula G = H(40) + 1.5(H)(O),
evaluate for G. H = $6.10 and O = 10.4
17
Fill in the Blanks
Let's try one more for good measure: G = H(40) + 1.5(H)(O)
H = 15.15 O = 2.37
Round to the nearest cent.
18
Open Ended
How do you feel about this lesson? Do you understand? What would be more helpful for you to learn?
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