Download Algebra Online Update 10/18/10

Algebra Online Update 10/18/10
Go to the following grade level sites…practice and explore new or difficult
skills or concepts for you..
http://www.aaamath.com/grade6.htm
http://www.aaamath.com/grade7.htm
http://www.aaastudy.com/grade8.htm
http://www.aaastudy.com/alg.htm
http://www.brightstorm.com/math/algebra
Using the vocabulary terms on pages 177 and 242 , define the terms.
Write or draw examples where appropriate.
Weekly Review #1 for Algebra ☺
Use an answer sheet to answer the following problems ☺
1.Solve the proportion
A.
B. 12
.
C.
D. 6
H. 2
J. 1
2. Solve 3t − 6 = t -2.
F. -2
G. -4
3. Solve 4(t + 1) = 6t − 1.
A.
B. 1
C. 0
D.
H. 2
J. no solution
4. Solve 5(g − 2) + g = 6(g − 4).
F. all numbers G. 0
5. Solve ax − 5 = b for x.
6. Find the percent of change. original: 12 new: 36
7. A baseball costs $4.00. If the total price is $4.32, what is the sales
tax %?
8. How many liters of pure acid must be added to 3 liters of a 50%
acid
solution to obtain a 75% acid solution?
F. 1 L
G. 4.5 L
H. 1.5 L
J. 3 L
9. Joe and Janna leave home at the same time, traveling in opposite
directions. Joe drives 45 miles per hour and Janna drives 40 miles
per
hour. In how many hours will they be 510 miles apart?
A. 7 hours
B. 6 hours
C. 5 hours
D. 4 hours
10)
Find the pattern
1,1,2,3,5,8,___,_____
11)
Find the pattern
1, 2, 4, 8, 32,___,______
12)
Find the pattern
13)
1, 2, 6, 24, ____, _____?
Find the surface area of the rectangular prism.
5 in
6 in
9 in
A. 198 in2
B. 168 in2
C. 270 in2
D. 258 in2
14)
If f(x) = 3x + 2 find f(-4)
.
15) Jackson just bought 4 shirts, 2 pants and 2 ties. How many different
outfits can he wear ?
16)
Evaluate 4!
A. 4
B. 10
C. 12
D. 24
A grocery bag contains 5 apples, 4 oranges, 2 peaches
17)
and 5 bananas.
What is the probability of selecting a peach?
18)
20)
21)
Evaluate: 7P3
19) Evaluate: 5C3
Evaluate 7!
What is the value of c? Leave answer in radical
form if necessary.
60°
c
5m
30°
b
22)A flock of cranes migrates from Canada to Texas. The cranes take
18 days (432 hours) to travel 2754 miles. The cranes fly at an average
speed of 27 miles per hour. How many hours of the migration are the
cranes not flying?
23) Your school's basketball team is playing in the championship game.
For the game, the cheerleaders want to buy a banner that costs $46.
They also want to buy small items to give to students in the stands.
Pompoms cost $3.49 each. Noisemakers cost $0.51 each. The cheer−
leaders have a total budget of $ 400 for the game. If they buy equal
numbers of pompoms and noisemakers, how many can they afford
to buy?
24)A car dealership sold 8002 new cars and 7700 used cars this year.
The number of new cars sold by the dealership has been increasing by 50
cars each year. The number of used cars sold by the dealership has been
decreasing by 20 cars each year. If these trends continue, in how many
years will the number of new cars sold be twice the number of used cars
sold?
25) If 2x2 = 200, then x4 – 500 = ??
26) Find the perimeter of the square.
17x − 36
11x
27) Find the
area of the square for 26.
28) Write in standard form:
7.16 × 105
A. 71,600
B. 716,000
C. 7,160,000
D. 71,600,000
29) Identify the type of sequence:
10, 12, 16, 22, …
A. arithmetic
B. geometric
C. neither
D. arithmetic and geometric
30) Solve 0.5 + 0.5 ÷ 0.5 + 0.5 • 0.5
31) The frequency table shows the number of minutes
per day that a group of people exercises.
Daily Exercise
(min)
Tally
Frequency
0-14
|||
3
15-29
||||
5
30-44
||||| ||
7
45-59
||||
5
How many minutes do the most people exercise per day?
A. 37 min
B. 0-59 min
C. 30-44 min
D. 30 min
32) The frequency table shows the number of minutes
per day that a group of people exercises.
Daily Exercise
(min)
Tally
Frequency
0-14
|||
3
15-29
||||
5
30-44
||||| ||
7
45-59
||||
5
How many people exercise less than 30 minutes per day?
A. 8
B. 12
C. 15
D. 59
33) The line plot shows the prices for different brands of sunglasses.
×
×
×
×
× ×
×
× × × × ×
× × × × × ×
× × × × × ×
20 30 40 50 60
70 80 90 100 110 120 130
What is the mode?
A. $60
C. $100
×
B. $80
D. $130
34) The following data are ages of children at a park:
6, 7, 9, 8, 4, 5, 8, 9, 6, 8
Find the mean.
A. 7
B. 7.5
C. 8
D. 6
Have a great day ☺
Weekly Review Online # 2
Write each fraction or mixed number as a decimal.
1)
11
25
2) −
1
8
2
3
4) 7
4
5
3) 1
Write each decimal as a fraction or mixed number in simplest form.
5) 0.05
6) 0.84
7) –0.25
8) 3.6
Compare using <, > or =.
9)
4
7
3
4
10) −
2
3
–0.8
Write in order from LEAST to GREATEST.
11)
1
2
, 0.3,
, 0.06
4
3
12) 4, 0.8, −
1
1
, –0.03,
2
10
Write each answer in simplest form.
13)
−
`15)
3
4
2 7
•
5 8
1
2
•3
2
5
14)
2
5
3
16)
−3
2
3
17)
4
3
+
7
4
18)
−7
5
1
+3
6
4
19)
2
20)
10
1
5
−4
2
9
÷
1
4
+5
3
5
÷ 11
Solve each equation.
21) x −
23)
1
4
=
7
5
3
x=9
4
22) x + 2.62 = 6.37
24) −
2
4
x=
5
15
Evaluate.
4
26) 3
3
-2
28) 2 • 5
25) 2
27) 4
3
2
Write each number in standard form.
29) 4.5 × 10
6
30) 7.1 × 10
Write each number in scientific notation.
31) 812,000
Find the square root.
33)
16
25
32) 0.00034
-5
Go to this website and EXPLORE ☺
http://cte.jhu.edu/techacademy/web/2000/heal/mathsites.htm