Page 373 - Algebra 1

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11. Handicap Ramps Building codes require that handicap ramps rise no more than (41) 1 foot for every 12 feet of horizontal distance. What is the maximum allowable
slope of a handicap ramp?
12. Multi-Step Majid is hiking a total distance of 620 yards. He has already hiked (42) 272.8 yards. What percentage of the total has Majid already completed?
a. Write an equation to solve the problem.
b. Find the solution.
c. Determine the reasonability of your solution.
*13. Charity Gaby has $250 in donations, and she receives pledges of $40 for every mile (45) she walks in a charity walk-a-thon. She wants to have total donations of at least
$500. Write an inequality to represent this situation.
14. Multi-Step A storage box in the shape of a cube is filled halfway with packing (46) material. There are 5324 cubic inches of packing material in the box.
a. What is the volume of the box?
b. What is the length of one side of the box?
15. Verify Vickie’s grade on her history report was 48 out of 60. Annie’s grade on her (47) history report was 47 out of 60. How much greater was Vickie’s percent grade
than Annie’s?
16. The data represents the number of clocks in 9 households: 7, 5, 13, 5, 7, 10, 5,
(48) 5, 8. What measure of central tendency best describes the data?
*17. Estimate In 1997 the enrollment in a preschool was approximately 500 students. (49) After that, the enrollment increased by approximately 20 students per year.
a. Write an equation to model the school’s enrollment y in terms of x, the number of years since 1997.
b. Estimate the school’s enrollment in 2005.
18. Multiple Choice A line through which of the following pairs of points has a (52) slope of 2?
A (0, 0) (0, 4)
B (0, 4) (6, 4)
C (4, 0) (6, 4)
D (6, 1) (2, 4)
*19. Graph the linear equation 2x - 7y + 5 = 0 using slope-intercept form. Check (49) your graph with a graphing calculator.
5 9.Simplifyz2 z -7ps+z.
(
10. Simplify (2ab2)2(-2b2)2.
)
(39)
-2 -1
-7 -3
(4 0)
358 Saxon Algebra 1