EXAMINATION NUMBER:
05074800
7. Convert �
3
5
9�
to a mixed number written in lowest terms.
A. 4�
5
7
� C. 7�
4
5
�
B. 5�
4
7
� D. 7�
5
4
�
8. What is the total of 49�
1
4
� + 3�
3
8
�?
A. 45�
1
8
� C. 52�
1
2
�
B. 45�
7
8
� D. 52�
5
8
�
9. What is 6 divided by �
3
8
�?
A. �
1
1
6 �
C. 2�
1
4
�
B. �
4
9
� D. 16
10. 15�
3
4
� ÷ 1�
3
4
� = ?
A. 4�
3
4
� C. 11
B. 9 D. 15�
3
4
�
11. 20,880 � �
2
5
� = ?
A. 3,480 C. 9,048
B. 8,352 D. 11,832
12. What is 639.497 rounded to the nearest tenth?
A. 634.4 C. 639.49
B. 639.0 D. 639.5
13. What is 475.53 minus 67.37?
A. 67.37 C. 475.53
B. 408.16 D. 542.90
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1. C Correct
2. A Correct
3. B Correct
4. C Correct
5. B Correct
6. B Correct
7. C Correct
8. D Correct
9. D Correct
10. B Correct
11. B Correct
12. D Correct
13. B Correct
14. C Correct
15. A Correct
16. C Correct
17. B Correct
18. D Correct
19. C Correct
20. A Correct
21. D Correct
22. C Correct
23. B Correct
24. B Correct
25. A Correct
1. C Correct
2. A Correct
3. B Correct
4. C Correct
5. B Correct
6. B Correct
7. C Correct
8. D Correct
9. D Correct
10. B Correct
11. B Correct
12. D Correct
13. B Correct
14. C Correct
15. A Correct
16. C Correct
17. C B
18. D Correct
19. C Correct
20. A Correct
21. D Correct
22. C Correct
23. B Correct
24. B Correct
25. A Correct
what is 1119 roun ed to the nearest 19 tenths?
To solve these questions, we need to understand a few mathematical concepts. Let's go through each question step by step:
7. Convert 3 5/9 to a mixed number written in lowest terms.
To convert a mixed number to a fraction, we multiply the whole number by the denominator and add that to the numerator. The result becomes the new numerator, and the denominator remains the same. In this case, we have (3*9 + 5)/9 = 27/9 + 5/9 = 32/9. So the answer is 3 5/9.
8. What is the total of 49 1/4 + 3 3/8?
To add mixed numbers, we first add the whole numbers, then add the fractions. In this case, we have (49 + 3) + (1/4 + 3/8). To add fractions with different denominators, we need to find a common denominator. In this case, the common denominator is 8. So (1/4 + 3/8) = (2/8 + 3/8) = 5/8. Therefore, the answer is 52 5/8.
9. What is 6 divided by 3/8?
To divide a number by a fraction, we multiply the number by the reciprocal of the fraction. The reciprocal of a fraction is obtained by swapping its numerator and denominator. In this case, we have 6 * (8/3) = (6 * 8)/3 = 48/3 = 16. Therefore, the answer is 16.
10. 15 3/4 ÷ 1 3/4 = ?
To divide mixed numbers, we need to convert them into improper fractions. (15 3/4) becomes (15*4 + 3)/4 = 63/4. (1 3/4) becomes (1*4 + 3)/4 = 7/4. So (15 3/4) ÷ (1 3/4) = (63/4) ÷ (7/4) = (63/4) * (4/7) = (63 * 4)/(4 * 7) = 252/28 = (252 ÷ 4) / (28 ÷ 4) = 63/7 = 9. Therefore, the answer is 9.
11. 20,880 ÷ 2/5 = ?
To divide a number by a fraction, we multiply the number by the reciprocal of the fraction. In this case, we have 20,880 * (5/2) = (20,880 * 5)/2 = 104,400/2 = 52,200. Therefore, the answer is 52,200.
12. What is 639.497 rounded to the nearest tenth?
To round a decimal number to the nearest tenth, we look at the digit in the hundredth place. If that digit is 5 or greater, we round up; if it is less than 5, we round down. In this case, the digit in the hundredth place is 9, which is greater than 5. So we round up to the nearest tenth. Therefore, 639.497 rounded to the nearest tenth is 639.5.
13. What is 475.53 minus 67.37?
To subtract decimal numbers, we align the decimal points and subtract each place value. In this case, we have:
475.53
- 67.37
______________
408.16
Therefore, the answer is 408.16.