20. 21. eoc practice. 23. 22. home-learning #7 review:
TRANSCRIPT
20.
21.
EOC Practice
23.
22.
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.
BACK
Given: P = 2l + 2w Solve for w
BACK
3d + 14 = 7e – 4d Solve for d
Solutions to last four slides:
1. d = rt solve for r
2. A = lw solve for l
3. P = 2l + 2w Solve for w
4. 3d + 14 = 7e – 4d Solve for d
Solutions:
1. r =
2. l =
3. w =
4. d = e - 2
1) Solve 2x - 4y = 7 for xTo get x by itself, what is the first step?
1. Add 2x
2. Subtract 2x
3. Add 4y
4. Subtract 4yAnswer
Now
BACK
cx + 3t = 2s – t Solve for t
BACK
Given m = 10n Solve for m2
1
Compare the following
• Solve both for y
5 9
9 9
4
y
y
m n y
n n
m n y
2) Solve for y.
What is the first step?
y a
3c
1. Multiply by 3
2. Divide by 3
3. Add a
4. Subtract a
Answer Now
1. L = V - WH
2.
3.
4.
3) The formula for the volume of a rectangular prism is V = lwh. Which equation solves the
formula for l?
LV H
W
LV W
H
LV
HW Answer Now
Don’t stress, it’s the same!Compare
• Solve for d
134
4 3 10
3 3
4 13
4 134 4
d
d
d
d
x fa
ad f x
ff
ad x f
ad x fa a
d
Pair – Practice:
• p + r = s Solve for r
Solve for p
• 4b – c = d Solve for b
Solve for c
• = 3j Solve for h
• A formula is a
type of literal
equation because
it contains constants
and variables.
Convert 23° Fahrenheit to Degrees Celsius.
329
5 FC
-5°C equals 23°F
99
5C
1
9
9
5C
32239
5C
1
1
Rewriting Literal Equations &
Finding Values:
10x + 5y = 80 Solve for y
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