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21.
EOC Practice
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23.
Home-Learning #7 Review:
Name:
Period:
Date:
Topic: Solving Literal Equations
Essential Question: Can
equations that appear to be different be equivalent and
how can you solve them?
Using the formula Distance:
Rate x Time or D=RT, we can solve
the formula for R or T.
Given: d = rt solve for r
The formula for area of rectangle is A = lw.
Find the formula for l.
Given: P = 2l + 2w Solve for w
BACK
3d + 14 = 7e – 4d Solve for d
BACK
Solutions to last four slides:
Solutions:
1. d = rt solve for r
1. r =
2. A = lw solve for l
2. l =
3. P = 2l + 2w Solve for w
3. w =
4. 3d + 14 = 7e – 4d Solve for d
4. d = e - 2
1) Solve 2x - 4y = 7 for x
To get x by itself, what is the first step?
1.
2.
3.
4.
Add 2x
Subtract 2x
Add 4y
Subtract 4y
Answer Now
cx + 3t = 2s – t Solve for t
BACK
1
Given m = 10n Solve for m
2
BACK
Compare the following
• Solve both for y
5 9y
9  9
m n y
n  n
4  y
m n  y
ya
2) Solve
 c for y.
3
What is the first step?
1.
2.
3.
4.
Multiply by 3
Divide by 3
Add a
Subtract a
Answer Now
3) The formula for the volume of a rectangular
prism is V = lwh. Which equation solves the
formula for l?
1. L = V - WH
VH
2. L
W
VW
3. L
H
4. L  V
HW
Answer Now
Don’t stress, it’s the same!
Compare
• Solve for d
4d  3  10
3  3
4d  13
4d 13

4
4
d  13 4
ad  f  x
f  f
ad  x  f
ad x  f

a
a
d   x f  a
Pair – Practice:
• p+r=s
Solve for r
Solve for p
• 4b – c = d
Solve for b
Solve for c
•
Solve for h
= 3j
Convert 23° Fahrenheit to
Degrees Celsius.
• A formula is a
type of literal
equation because
it contains constants
and variables.
5
C  F  32 
9
5
C  23  32 
9
5
C   9
9
1
5 9
C 

91  1 
-5°C equals
23°F
10x + 5y = 80 Solve for y
Rewriting Literal
Equations &
Finding Values:
Use re-written equation to find y
when x = 3 and when x = 6
y + 2x = 5 Solve for y.
Then find the value of y for each
value of x: x = - 1 and x = 0
Independent Practice:
• Page 112 ( 14, 26)
• Page 114 (53, 54, 56)
Las Vegas Review!!!
Wrap – Up:
• Reminder:
- Assessment #2