Page 455 - Algebra 1

5. Simplify the rational expression _3x + xy-2, if possible. (51) y2
6. In three hours, James read 18 pages of his history book. In four hours, he read
(52)
Solve the inequality.
7.
(66)
9.
(62)
10.
(57)
11.
(54)
z-3≥10 8. z-5<-2 (66)
Hobbies The stem-and-leaf plot shows the number of cards each member of a baseball card enthusiasts’ club has. What is the mode(s) of the data?
Cards in Collection
21 pages. Write the equation of the line that passes through the two points that represent the data in the problem. Use the equation to predict how many pages James will read in six hours.
Stem
30 31 32 33 34 35
Leaves
9
1, 4, 5, 7, 7, 9
0, 1, 4, 4, 4, 7, 8 5, 6
2, 8, 9
0, 4, 6, 6, 6, 7,
Key: 31 5 means 315 cards
Amount
Tally
$25
4
$50
2
$60
6
$75
3
$80
7
$100
5
*12.
(Inv 5)
13.
(66)
Transportation Two subway trains run through a station. One train goes through the station every 44 minutes and the other train goes through the station every 28 minutes. If they just went through the station at the same time, how many minutes will it be until the next time they are both at the station at the same time?
Multi-Step A bank teller receives several deposits in one day. She tallies how many of each amount she receives.
a. Make a box-and-whisker plot for the set of data.
b. List the lower extreme, lower quartile, median, upper quartile, and upper extreme of the data.
Identify Statement 2 as the converse, inverse, or contrapositive of Statement 1. Then indicate the truth value of each statement.
Statement 1: If a figure is not a polygon, then it is not a square. Statement 2: If a figure is a polygon, then it is a square.
Error Analysis Two students solve the inequality x + 2 < 3. Which student is correct? Explain the error.
Student A
x+2< 3 +__2 +__2
x<5
Student B
x+2< 3 -__2 -__2
x<1
440
Saxon Algebra 1