Transcript UNIT #1 REVIEW

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What is the prime factorization of 126 ?
What is the prime factorization of
126
2
63
3
21
3
2• 3² • 7
7
126 ?
Each of these four students wrote an equation.
Which of these students wrote an equation that is
true?
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Tommy wrote 3³= 9
James wrote 7 • 2² = 7 • 4
Kristy wrote 2² • 4 = 32
Sue wrote 3² = 2³
A.James only
B.Sue only
C.Kristy and Sue
D.James and Tommy
Caleb could write his great-uncles age of 75 as
3 x 5 x 5. Which of the following would express his
Great-Uncle’s age in exponential form?
A. 3 x 15
B. 3 x 2
C. 3 x 5²
D. 3 x 25
In Huntsville,Texas it rained 22.75 centimeters
in 3.5 hours. In Houston,Texas it rained 10.5 cm
in 2.5 hours. Which of the following statements
is true?
A. It rained more per hour in Huntsville.
B. It rained more per hour in Houston.
C. It rained the same per hour in Houston and
Huntsville.
D. None of above.
Sherell purchased 6 decorated flower pots for
$24.18, not including tax. If each flower pot
cost the same amount, what was the cost for
each flower pot, not including tax?
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03
Mr. Gregory purchased 3.25 pounds of
potatoes that cost $1.25 per pound. How
much change should he receive if he gives
the cashier a $20.00 dollar bill.
A.$16.75
B.$15.94
C.$17.20
D.$ 3.00
Shelly wants to buy a new video game. The sale price for the video
game is $68.88 including tax. Shelly is working 5.25 hours this week
and earns $9.50 an hour. After she receives her paycheck this
week, how many more hours does she need to work in order to
purchase her game?
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Which list shows the rational numbers in
order from greatest to least?
A. 0.7, 7.0, 7.01, 7.77, 7.7
B. 7.77, 7.7, 7.07, 7.0, 0.7
C. 7.7, 0.7, 7.0, 7.07, 7.77
D. 0.7, 7.07, 7.0, 7.7, 7.77
Which number line does not have a
correct interval?
0
0.1
0.007
0.04
0
0.2
0
0.04
0.4
0.7
0.1
0.14
The finishing times for five swimmers in the 100-meter race are shown
in the table below.
Swimmer
Time
Greg
9.25
Ashley
9.14
Danny
7.31
Lucy
7.12
Brent
9.01
List the runners in order from fastest to slowest. Explain
your answer.
Lucy, Danny, Brent, Ashley, Greg
Small time means fast!
Study !!!