Unit 1 Test Review

Answers are in Word document

1. What is the difference between 5x, x5, and x-5?

Use the polynomial to answer the following questions: 3x2 – 4y – 62. What are the terms?3. What are the coefficients?4. What are the constants?5. What are the exponents?6. What are the variables?

7. Solve for x: 3x – 4y = 128. Solve for y: 2x – ½ y = 49. Solve for x: 3(-2x + 6) – 4 = (2x + 7) – (-3x + 3)10.Solve for y: 3y – 4 < 5y + 611.Write the solution for #10 in interval

notation.12.What is the inequality represented by

[-3, 5)?

13.Find three consecutive integers whose sum is 63.

14.Find 4 consecutive even integers whose sum is 20.

15.John made a equilateral triangular pyramid out of pipe. If he had 90

feet of pipe, what was the length of each side?

16.Sally hopes to maintain her 85 test average. If she made an 80, 92, and 78 on the first three tests, what does she have to make on the last one?

17.Joe makes $12 an hour cutting lawns. Write an equation to show how much he can make.

18.If he works for 22 hours, how much will he make?

19. Marsha, Tomas, and Julia have 40 pieces of candy. Marsha has twice as much as Tomas. Julia has 12 less than Tomas. How much does each person have? 2t + t + t – 12 = 404t = 52T = 13M = 26J = 1

20.If a rectangle’s width is 10 inches shorter than its length and the perimeter is 28 inches, what are the dimensions?

w = l – 102l + 2(l – 10) = 284l – 20 = 28l = 12 inw = 2 in

21.Convert 145,000 seconds to days

22. Convert to miles per hour

23. The formula for finding your maximum safe heart rate is: HRmax = 217- 0.85a with HR being heart rate and a being age. If a 48 year old has a heart rate of 180, are they safe?

145

1sec

ft

24. If a bacteria quadruples every day and there are 10 bacteria on the first day, when will there be at least 1000?

25. What is 10% of 200?

26. If I want 50 as an answer, what do I need to take 10% of?