AB ­ 2.8 Literal Equations.notebook
September 17, 2013
"Do Now"
Classify each number
(more than one
answer may apply)
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
Team Hoyt
http://www.teamhoyt.com/about/index.html
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
Name
Date
Block
Unit 2: Solving Equations
2.8 Literal Equations
1.
Team Hoyt finished a
marathon in
2 hours and 40 mins
(or about 2.6 hours).
d = rt
A marathon is about
26.2 miles. What was
their average speed?
Use the formula d = rt and
round to the nearest
tenth.
5
AB ­ 2.8 Literal Equations.notebook
Hoyt's average
2. Team
speed during a half-
September 17, 2013
d = rt
marathon was about 10.1
miles per hour.
A half-marathon is about
13.1 miles.
How long did it take them
to finish the race?
Use the formula d = rt and
round to the nearest
tenth.
6
AB ­ 2.8 Literal Equations.notebook
September 17, 2013
To find a baseball pitcher's
3. earned
run average (ERA), you
can use the formula
Ei = 9r, where
E represents ERA,
i represents # innings pitched,
and r represents # earned runs
allowed.
Solve the equation for E.
What is a pitcher's ERA if he
allows 5 earned runs in 18
innings pitched?
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AB ­ 2.8 Literal Equations.notebook
4.
September 17, 2013
On May 14, 1898, a severe
hailstorm hit Kansas
City. The largest hailstones
were 9.5 inches in
circumference. Windows
were broken in nearly
every house in the area.
The formula for the
circumference of a circle is
C = 2πr, where C represents
circumference and r represents
radius.
a. Solve the formula for r.
b. Find the radius of one of the
largest hailstones that fell on
Kansas City in 1898.
8
AB ­ 2.8 Literal Equations.notebook
5.
September 17, 2013
The formula for a Fahrenheit
temperature in terms of
degrees Celsius is
a) Solve for C.
b) 32 F is equal to how many
degrees Celsius?
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
Whiteboards
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
Whiteboards
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AB ­ 2.8 Literal Equations.notebook
A=
September 17, 2013
r
2
Solve for for b
for h
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AB ­ 2.8 Literal Equations.notebook
September 17, 2013
Homework Change:
#8, 10, 11, 15
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