TExES 391 Math Practice Test

36. 52.3 x10^-3

0.0523

7. 4.67 miles is equivalent to how many kilometers to three significant digits 4.67mi x (1.609Km) divided by (1mi) =?

7.51Km

27. Moms car drove 72 miles in 90 mins. How fast did she drive in feet per second 72miles/90minx 1min/60secondsx 5280x1mile

70.4

8. If 5/2 divided by 1/3 =n , then n is between 5/2 divided by 1/3 = 5/2 x 3/1= 15/2 which equals 7.5

(7.5) 7 and 9

13. At the beginning of the day, Xavier has 20 apples. At lunch, he meets his sister Emma and gives her half of his apples. After lunch, he stops by his neighbor Jim's house and gives him 6 of his apples. He then uses 3/4 of his remaining apples to make an apple pie for dessert at dinner. At the end of the day, how many apples does Xavier have left Step 1. 20/2 = 10 Step 2. 10-6=4 Step 3. (1 - 3/4 )x4= ? (4/4-3/4)x4=? (1/4)x4 =1

1

28. 3 2/3 - 1 4/5 11/3-9/5=55/15-27/15=28/15

1 13/15

10. Shawna buys 2 1/2 gallons of paint. If she uses 1/3 of it on the first day, how much does she have left 2/3x5/2=5/3

1 2/3 gallons

12. What are all the factors of 12

1,2,3,4,6,12

37. Which of the following numbers has the greatest value Compare 1.4378 1.07548 1.43592 0.89409

1.4378

6. Five of six numbers have a sum of 25. The average of all six number is 6 . What is the sixth number 36-25=?

11

15. What is the value of the sum of 1/3 and 2/5 Have the LCM of 3 and 5 which is 15 5/15+ 6/15=

11/15

1. Which of the following is the result of simplifying the expression (4a-1..b3/a4b-2 )X (3a/b) = Combine like terms 4b5/ a5 X 3a/b =?

12b4/a4

34. Four people split a bill. The first person pays for 1/5 the second persons pays for 1/4 and the third person pays for 1/3 what fraction of the bill does the fourth person pay Find the common denominator 1/5+1/4+1/3= 12/60+15/60+20/60=47/60 The remainder of the bill is 1-47/60=60/60-47/60

13/60

35. 6 is 30% of what number 30% is 3/10 35. 10/3 of 6. or 10/3x6 = 10x2= 20

20

16. Add and express in reduced form 5/12 + 4/9 Set up the problem to find a common denominator for both fractions 5/12+ 4/9 Multiply each fraction across by 1 to convert to a common denominator 5/12x 3/3 + 4/9x4/4 Once over the same denominator, add across the top. The total is over the common denominator 15+16/36=

31/36

38. The value of 6x 12 is the same as

3x3x4x2

32. Jessica buys 10 cans of paint. Red paint costs $1 per can and blue paint cost $2 per can. In total, she spends $16. How many red cans did she buy x+2(10-x)=16 Combine Like Terms x+20-2x=16 20-x=16 x=4

4

24. What is the simplified form of the expression 1.2x10^12 divided by 3.0 x 10^8 Initial expression would be 0.4x10^4 subtract one from the exponent

4.0x 10^3

9. A closet is filled with red, blue, and green shirts. If 1/3 of shirts are green and 2/5 are red what fraction of shirts are blue 1-11/15=15/15-11/15=?

4/15

39. This chart indicates how many sales of CD, vinyl records, nd MP3 downloads occurred over the last year. Approximately what percentage of the total sales was from CD

40%

33. Which of the following is NOT a way to write 40 percent of N 40N would be 4000% of N

40N

5. 4 1/3 + 3 3/4 =

8 1/12

22. Round to the nearest tenth 8.067 Round 8.067 to the nearest tenths, use the digit in the hundredths

8.1

11. How will 4/5 be written as a percent 4 divided 5 = 0.8 0.8x 100=

80%

14. How will the number 847.89632 be written if rounded to the nearest hundredth the digit to the digit to the right of the place value is examined to decide whether to round up or keep the digit. In this case, the digit 6 is 5 or greater so the hundredth place is rounded up. when rounding up if the digit to be increased is a 9 , the digit to its left is increased by one and the digit in the desired place value is made a zero.

847.90

21. Express as an improper fraction 11 5/8 (8x11)+5 divided by 8

93/8

Which of the following is the definition of a prime number

A number greater than one that factors only into itself and 1

Which of the following could be used in the classroom to show (3/7 < 5/6) is a true statement

A number line

What is the definition of a factor of the number 36

A number that 36 can be divided by and have no remainder

19. In the problem 5x6 +4 divided by 2 -1 Follow PEMDAS

Multiplication

A teacher is showing students how to evaluate (5x6+4/2-1) Which operation should be completed first

Multiplication Follow PEMDAS

4. How is the number -4 classified

Real, Rational, integer

3. The graph shows the position of a car over a 10-second time interval. Which of the following is the correct interpretation of the graph for the interval 1 to 3 seconds

The car is traveling at a speed of 5m/s

31. What is the domain for the function y=x

x >0

30. Which equation is not a function x=3 is not a function it does not pass the vertical line test

x=3

20. Express as an improper fraction 8 3/7 (8x7) +3 divided by 7

59/7

17. Divide and reduce 4/13 divide by 27/169 Set up division problem 4/13 divided by 27/169 Flip the second fraction to get its reciprocal for multiplication 4/13 x 169/27 Simplify and reduce the fraction 4/1x 13/27 Multiply across the top and across the bottom to solve 4x13 1x27

52/27

40. After a 20% sale discount discount, Frank purchased a new refrigerator for $850 how much did he save from the original price 850/x =80/100

212.50

What is the next number in the following series: 1,3,6,10,15,21........

28

18 Express as a reduced mixed number 54/15 Divide 54 by 15 doing long division

3 3/5

29. Twenty is 40% of what number 20/x=40/100 40x=2000, so x=

50

26. The phone bill is calculated each month using the equation c=50g+75 the cost of phone bill per month is represented by c, and g represents the gigabytes of data used that month what is the value and interpretation of the slope of this equation Slope is 50 and it is interpreted as the cost per gigabyte used since the g value represents the number of gigabytes and equation is set equal to the cost in dollars , the slope relates these two values For every gigabyte used on the phone the bill will go up

50 dollars per gigabyte

2. What is the product of two irrational number

Irrational or rational

23. When rounding 245.2678 to the nearest thousandth, which place value would be used to decide whether to round up or round down The value in the thousandth place is 7. The number in the place value to its right is greater than 4, so the 7 gets bumped up to 8 . Everything to its right turns to a zero

Ten-thousandth