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Ber [7]
3 years ago
6

I need help with all yhree of them please :)​ thirteen points

Mathematics
2 answers:
charle [14.2K]3 years ago
8 0

Answer:

2. 30 lb; 3. 12 pt;  4. 19 h 5 min

Step-by-step explanation:

2. Pounds and ounces

Add the pounds and ounces separately.

1 lb = 16 oz

If the ounces are 16 or more, subtract 16 from the ounces and add 1 to the pounds

   12 lb      8 oz

+ <u>17 lb      8 oz </u>

  29 lb    16 oz

   <u>+ 1 lb - 16 oz</u>

  30 lb

3. Pints and cups

Add the pints and cups separately.

1 pt = 2 c

If the cups are 2 or more, subtract 2 from the cups and add 1 to the pints.

   7 pt     1 c

+<u> 4 pt    1 c</u>

  11 pt   2 c

+<u> 1 pt - 2 c </u>

12 pt

4. Hours and minutes  

Add the hours and minutes separately.

1 h = 60 min

If the minutes are 60 or more, subtract 60 from the minutes and add 1 to the hours.

   17 h    40 min

  + <u>1 h    25 min </u>

  18 h    65 min

 +<u> 1 h  - 60 min</u>

  19 h      5 min

mel-nik [20]3 years ago
6 0

Answer:

C, A, B.

Step-by-step explanation:

2. 12lb + 17lb (Like terms) = 29 lb

3. 7pt+4pt = 11 pt

As for 4, you should understand.

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