Cellular phone companies often package their products to
make them more attractive to potential users.
Package A includes a free phone and 300 minutes. It will
cost 0.12 per minute for each minute over the plan time.
Package A has a base rate of $39.95.
A = 39.95 + 0.12(m­300)
Package B includes a free phone and has 350 minutes of
time and 0.08 per minute for each minute over the plan
time. Package B has a base rate of $45.95.
B=45.95 + 0.08(m­350)
a) If you use 450 minutes in a month, which plan is the
better deal?
¼½¾
Rearranging Formula
X
+­
x÷
¼½¾
X
+­
x÷
b) How many minutes in a month would make both
plans cost the same?
¼½¾
X
+­
x÷
Oct 22­9:27 AM
Oct 20­1:41 PM
15= 2x +5
3
¼½¾
+­
X
¼½¾
75 = (3)(5)x
x÷
X
+­
x÷
Acceleration
Heat
a = vf ­ v i
t
Solve for T
¼½¾
+­
X½ ¾
¼
X
x÷
Q=mcT
+­
x÷
Oct 22­9:20 AM
A = bh
2
solve for b
Oct 22­9:20 AM
s = d/t
A car travels 200 km in 4 hours. What is its speed?
¼½¾
X
+­
x÷
A car travels 55 km/h for 3.5 hours. How far does it
travel?
¼½¾
X
+­
x÷
Oct 22­9:20 AM
Oct 22­9:47 AM
1
Pg 180­182
#1­4, 6,10,16
Nov 3­7:54 AM
Nov 3­9:02 AM
2