Page 348 - Algebra 1

13. Translate the following sentence into an inequality: (45)
The difference of -4 and an unknown number is less than or equal to 0. 14. Evaluate the expression for the given value.
(46)
*15. Business Arminda owns a ladies’ bag business. The total cost of producing a
(28) group of bags is $1100. In addition, each bag costs $18 in materials. If Arminda sells each bag for $40, how many bags should Arminda sell to gain a profit of at
least $2200?
16. The data below are the weights of 10 newborns (to the nearest pound). Find the
_ -√ x when x = 25
16
(48) mean, median, and mode of the data.
5, 8, 6, 5, 7, 8, 10, 7, 8, 6.
*17. Data Analysis Study the graph. It shows the cost of playing (49) x number of games after renting equipment.
a. Write an equation that represents the line of the graph in slope-intercept form.
b. What is the cost of playing 5 games?
Cost of Playing
70 60 50 40 30 20 10
0
1 2 3 4 5 6
Number of Games
18. Multi-Step Murietta is planning a party at a bowling alley. She wants to rent two (49) lanes. The rental fee for the two lanes is $40 plus the rental of $2 per pair of
bowling shoes.
a. Write an equation in slope-intercept form to represent this situation.
b. Murietta is renting two lanes and inviting 9 people. If everyone including herself rents shoes, what will the cost of the party be?
19. Write an inequality for the graph below. (50)
01
*20. Error Analysis Two students graphed the inequality 2.5 > b as shown below. (50) Which student is correct? Explain the error.
_5 _ 21. Find the excluded value in the expression b .
(51) b3
Student A
1234
Student B
1234
525x + 100 (51) 400x + 85 5x + 1
*22. Soccer In international play, the m_
aximum length of a soccer field is
meters and the maximum width is 5x + 1 meters. Each linesman is responsible for watching half of the field’s perimeter. How many meters along the border of
the field must the linesman watch during the game?
Lesson 52 333
Cost ($)