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Naya [18.7K]
3 years ago
13

Double the difference of a number n and 3 is -10. Which equation models this "number riddle" correctly?

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
7 0
Answer: D

Explanation
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Cher wraps 40 presents in 2 hours. At that rate, how many presents would she wrap in 15 minutes
gavmur [86]

Answer:

5 presents

Step-by-step explanation:

40 presents in 2 hours

20 presents in 1 hour (divide by 2)

20 presents in 60 minutes ( 1 hour is 60 minutes )

5 presents in 15 minutes ( divide by 4)

6 0
3 years ago
Find the surface area.<br> 13.5 in<br> 9 In<br> 9 in.<br> 10 in.
n200080 [17]

Answer:

486 in

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3 0
3 years ago
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Two sevenths of the height of a sailboats tallest mast is 8 feet. How many feet high is the sailboats tallest mast
Rudik [331]

Answer:

The answer is 28 ft

Step-by-step explanation:

Since two sevenths of the height of a sailboats tallest mast is 8 feet, we keep adding two sevenths until we get its tallest mast.

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6/7 = 24 ft

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5 0
3 years ago
There are 5,280 feet in 1 mile. If Riley ran 26,400 feet, how many miles did she run? [Type your answer as a number.]
fredd [130]
Riley ran 5 miles. 

Hope this helps!!
8 0
3 years ago
Kristen bought a pack of 12 pencils for $1.35 how much was each pencil
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1.35/12=0.1125, rounds to about $0.11.
Each pencil was about $0.11.
8 0
3 years ago
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