AB 2.8 Literal Equations.notebook September 17, 2013
"Do Now"
Classify each number (more than one answer may apply)
1 AB 2.8 Literal Equations.notebook September 17, 2013
Team Hoyt http://www.teamhoyt.com/about/index.html
2 AB 2.8 Literal Equations.notebook September 17, 2013
3 AB 2.8 Literal Equations.notebook September 17, 2013
4 AB 2.8 Literal Equations.notebook September 17, 2013
Unit 2: Solving Equations Name Date 2.8 Literal Equations Block
1. Team Hoyt finished a marathon in d = rt 2 hours and 40 mins (or about 2.6 hours).
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 September 17, 2013
2. Team Hoyt's average speed during a half- 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?
7 AB 2.8 Literal Equations.notebook September 17, 2013
On May 14, 1898, a severe 4. 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 September 17, 2013
5. 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?
9 AB 2.8 Literal Equations.notebook September 17, 2013
Whiteboards
10 AB 2.8 Literal Equations.notebook September 17, 2013
Whiteboards
11 AB 2.8 Literal Equations.notebook September 17, 2013
A= r2 Solve for
for b
for h
12 AB 2.8 Literal Equations.notebook September 17, 2013
Homework Change: #8, 10, 11, 15
13