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Ray Of Light [21]
3 years ago
9

please need help ASAP A discount book store sells hardcover books for $8 each and paperbacks for $4 each.The number of hardcover

books, h, sold one day was 2 more than four times the number of paperback books, p, sold that same day. The total amount of sales for that day was $160. Jean-Paul wrote the following system of linear equations to find the number of each type of book sold. 8H+4P=160 P4H+2 what was paul's error
Mathematics
2 answers:
Mama L [17]3 years ago
5 0
Translate every statement into algebraic language.

1) <span>hardcover books for $8 each

- name h the number of hardcover books
- amount of sale from hardcover books = 8h

2) paperbacks for $4 each

- namel p the number from paperback books
- amount of sale of paperbacks = 4p

3) the number of hardcover books, h, sold one day was 2 more than four times the number of paperback books, p, sold that same day.

-  h = 2 + 4p

4) the total amount of sales for that day was $160.

- 8h + 4p = 160

6) system of equations

h = 2 + 4p
8h + 4p = 160

5) Jean-Paul wrote the following system of linear equations to find the number of each type of book sold, </span><span>

8H+4P=160
P=4H+2 <---------- here is the error. This means that number of paperback books sold was 2 more than four times the number of hardcover books sold, when the right statement is that </span><span><span>the number of hardcover book sold was 2 more than four times the number of paperback books, p, sold.</span></span>
Genrish500 [490]3 years ago
5 0

Answer:

C. Jean-paul should have written the second equation as h=4p+2

Step-by-step explanation:

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Define four symbolic constants that represent integer 25 in decimal, binary, octal, and hexadecimal formats
stealth61 [152]

Answer:

1) Decimal    25= (25)_{10}

2) Binary    25= (11001)_2

3) Octal   25= (31)_8

4) Hexadecimal   25= (19)_{16}

Step-by-step explanation:

Given : Integer is 25                      

To find : Represent integer in decimal, binary, octal, and hexadecimal formats.

Solution :

1) Integer into decimal - To convert into decimal the base goes to 10.

So, 25= (25)_{10}

2) Integer into binary - To convert into binary the base goes to 2, it form in 0 and 1 and we divide integer by 2.

Divide 25 by 2 and note down the remainders.

2 | 25

2 | 12    R=1    ←

2 | 6     R=0   ↑

2 | 3      R=0  ↑

2 | 1  →   R=1   ↑

So,   25= (11001)_2

3) Integer into octal - To convert into octal the base goes to 8 and we divide integer by 8.

Divide 25 by 8 and note down the remainders.

8 | 25

  | 3 →   R=1    

So,   25= (31)_8

4) Integer into hexadecimal - To convert into hexadecimal the base goes to 16 and we divide integer by 16.

Divide 25 by 16 and note down the remainders.

16 | 25

   | 1 →   R=9    

So,   25= (19)_{16}

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