Transcript Lesson 3 - Coweta County Schools

Notes Over 3.3
Solve the equation.
1. 5y  8  2
8 8
5y  10
5 5
y  2
5 2  8  2
10  8  2
2  2
Notes Over 3.3
Solve the equation.
2. 7  6m  1
7
7
6m  6
6 6
m 1
7  61  1
761
11
Notes Over 3.3
Solve the equation.
x
3.
1  5
4
1 1
x
4  64
4
x  24
24
1  5
4
6 1  5
55
Notes Over 3.3
Solve the equation.
4. 4 x  8  x  2 42  8  2  2
5x  8  2
8 8
5x  10
5 5
x2
88 2  2
22
Notes Over 3.3
5. 6  b  1  9 6   4  1  9
6  b 1  9
6
  3  9
5b  9
Solve the equation.
5 5
b  4
1 1
b  4
99
Notes Over 3.3
Solve the equation.
5

6. 10z  2  1  4 10  2   1  4
2

10z  20  5
20 20
10z  25
10 10
5
z
2
1
10   5
2
55
Notes Over 3.3
Solving a Real-Life Problem
multiply
per
7. A parking garage charges $3 plus $1.50 per
hour. You have $12 to spend for parking.
Write and solve an equation to find the
number of hours that you can park.
Verbal Model
Initial
Charge

h  # of hours you can park
Rate for
Hours

 Total Cost
90
h   6 hours
15
# hours
315
. h  12
3
3
15
. h  9 The longest you can park is
6 hours.
15
. 15
.
Notes Over 3.3
Solving a Real-Life Problem
8. As a lifeguard, you can earn $6 per day
plus $2.50 per hour. Write and solve an
equation to find how many hours you must
work to earn $16 in one day.
Verbal Model

h  # of hours you can work
 # hours  Total Earnings
100
62.5h  16
h
 4 hours
6
6
25
2.5h  10 You must work at least 4
hours.
2.5 2.5
Days
Wage
Rate for
Hours
Notes Over 3.3