Question 3. 3. Convert 1111 two to base ten. (Points : 1) Question 4. 4. Find th

Question

  

Question 3. 3. Convert 1111two to base ten. (Points : 1)

Question 4. 4. Find the additive inverse of 5 on the 12-hour clock. (Points : 1)

Question 9. 9. Find the value of 327 in the mod 7 system. (Points : 1)

Question 1. 1. Find the LCM of 4 and 20. (Points : 1)        4
       80
       2
       20 Question 2. 2. Perform the multiplication on the 12-hour clock.
11 x (4 x 8) (Points : 1)        4
       6
       5
       3

Question 3. 3. Convert 1111two to base ten. (Points : 1)

     

Question 4. 4. Find the additive inverse of 5 on the 12-hour clock. (Points : 1)

      Question 5. 5. Solve the equation. 2x - 4 = -10 (Points : 1)        {-7}
       {-1}
       {-9}
       {-3} Question 6. 6. Write XIV in the Hindu-Arabic system. (Points : 1)        16
       14
       115
       104 Question 7. 7. Perform the multiplication on the 12-hour clock. 11 x 3 (Points : 1)        11
       9
       8
       10 Question 8. 8. Convert 3214five to base ten. (Points : 1)        538
       120
       434
       4045

Question 9. 9. Find the value of 327 in the mod 7 system. (Points : 1)

      Question 10. 10. Add. (-6) + (-14) (Points : 1)        -20
       -8
       20
       8 Question 11. 11. Joe has $10,000 to purchase a used car. If the sales tax is 7% and the fee for title and license plates is $200, what is the maximum amount Joe can spend for a car? (Points : 1)        $9,158.88
       $5,764.70
       $9,345.79
       $9,532.71 Question 12. 12. Find the LCM of 18, 28, and 48. (Points : 1)        42
       24,192
       2
       1,008 Question 13. 13. Which number is prime? (Points : 1)        12
       31
       99
       1 Question 14. 14. Write CDIX in the Hindu-Arabic system. (Points : 1)        611
       609
       411
       409 Question 15. 15. Solve the inequality: x + 14 < -11 (Points : 1)        x > 3
       x > -25
       x < -25
       x < 3 Question 16. 16. Simplify. 88

Explanation / Answer

1) 20

2) 4

3) It's 2^3 + 2^2 + 1^1 + 2^0 = 8 + 4 + 2 + 1 = 15

4) First note 0 ? 12. 5 + x = 0 for x to be the additive inverse.

So 5 + ? = 12. Answer 7.

So 5 + 7 ? 0 mod 12 and 7 is the additive inverse.

5) -3

6) 14

7) 9

8)3*5^3+2*5^2+1*5^1+4*5^0 = 434

9)327 when divided by 7 leaves 5 as the remainder.

Therefore, 327 in mod 7 system is 5 or

327 = 5 (mod 7)

10)-20

11)$9,158.87(1.07) + 200 = 9799.06 + 200 = $9999.06
$5,764.70(1.07) + 200 = 6168.23 + 200 = $6368.23
$9,345.79(1.07) + 200 = 10000 + 200 = $10200
$9,532.71(1.07) + 200 = 10200 + 200 = $10400

Answer is $9,158.8

12) 1008

13) 31

14)C represents 100:
D represents 500:
I represents 1:
X represents 10:

but when written in numerals, they are interpreted as:

CDIX = 409

15) x > 3

16)1

17) -15x+15

18) 8

19) Associative property of addition

20) 3000/90=3500/90+x, 3000[90+x]=90[3500],270000+3000x=315000, 3x=45, x=15! Answer

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