Page 638 - Basic College Mathematics with Early Integers

CHAPTER 8 TEST 615

14. 3.6 - 2x =-5.4 15. 12 = 314 + 2y2 14.

15.
16. 5x - 2 = x - 10 17. 10y - 1 = 7y + 21

16.

18. 6 + 213n - 12 = 28 19. 415x + 32 = 217x + 62 17.

18.
Solve.

20. A lawn is in the shape of a trapezoid 21. If the height of a triangular-shaped jib 19.
with a height of 60 feet and bases of sail is 12 feet and its base is 5 feet, find
70 feet and 130 feet. Find the area of the area of the sail. Use
the lawn. Use
1 # # 20.
1 A = 2 b h.
h 1B + b2.
A = # #
2
21.

22. Translate the following phrases into 23. The difference of three times a number 22. a.
mathematical expressions. Use x to and five times the same number is 4.
represent “a number.” Find the number.
a. The product of a number and 17 b.
b. Twice a number subtracted from 20

23.

24. In a championship basketball game, 25. In a 10-kilometer race, there are 112
Paula Zimmerman scored twice as more men entered than women. Find 24.
many points as Maria Kaminsky. If the the number of women runners if the
total number of points made by both total number of runners in the race is
women was 51, find how many points 600
Paula scored. 25.