PreAlgebra Calendar for the Week 10/12/15-10/1615
Monday 10/12/15
SCHOOL CLOSED
Tuesday 10/13/15
1. You can do 70 sit-ups in
2 minutes. Your friend can
do 140 sit-ups in 3 minutes.
Do these rates form a
proportion? Explain.
2.
3. There are 144
people in an audience.
The ratio of adults to
children is 5 to 3. How
many adults are there?
Solve the proportions:
5
30
2
𝑑
a. =
b.
2𝑥
8
=
1
2
HW #19
Page 196 #s 4-6, 10 Page 208 # 1-4
Wednesday 10/14/15
2. There are 180 white lockers in a school.
There are 3 white lockers for every 5 blue
lockers. How many lockers are in the school?
Explain.
3. Solve the equation:
𝑥
6
= 25
HW #20
Page 196 #s 7-9, 12 Page 197 # 16 Page 208 #s 7 and 8
Thursday 10/15/15
1. Graph the following:
(0, 0)
(1, 2)
(2, 4)
(3, 6)
2. Nick swam laps in the pool. His
times are shown in the table.
Determine whether the number of laps
he swam is proportional to the time.
Time,
min
Laps,
y
2
3
4
5
24
36
48
60
HW #21 Page 202 #s 6, 8, 10, 12 Page 203 #s 30-34 Page 208 #s 9 and 10
Friday 10/16/15
1. Tell whether the following shows direct
variation:
a. 8 = xy
b. y – 2 = 4x
c. x – y = 0
2. A benefit concert with three performers lasts 8
hours. At this rate, how many hours is a concert with
four performers?
HW #22 Page 202 #s 7, 9, 11, 15 Page 204 #s 11 Page 209 # 1-4