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ale4655 [162]
3 years ago
14

Simplify this expression: 21-4x + 6)

Mathematics
1 answer:
ioda3 years ago
4 0
27-4x hope that helps
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Here are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag.
natima [27]

Answer:

5/25

Step-by-step explanation:

first you count how many there are which is 25 and than you 5 red marbles so it would be 5/25

8 0
3 years ago
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Tell which property is illustrated by the statement. 3+z=z+3
ANEK [815]

Answer:

communitive property of addition

Step-by-step explanation:

The community property of addition states: a+b=b+a

This basically means that when you add two numbers, the order of when you add them does not occur.

3 0
3 years ago
A file that is 278 megabytes is being downloaded. If the download is 19.9% complete, how many megabytes have been downloaded? Ro
noname [10]

Answer:

55.3

Step-by-step explanation:

19.9% of 278 = 55.322

55.322 rounded to the nearest tenth = 55.3

8 0
4 years ago
The ratio of the number of hours it takes the three pipes A, B and C to fill an olympic pool is 4:9:12. Answer each of the follo
Andru [333]

Answer:

your answer is 6 hours

Step-by-step explanation:

you have the 2nd pipe takes 72 hours so then you multiply 4 x 9 x 12 which is 432 and then you divide 432 by 72 which is 6 so it would be 6 hours

hope it helps ^^

4 0
3 years ago
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Sophia is designing the seating arrangement for a concert and
pentagon [3]

Answer:

the answer for the first part is 260

the equation is n+8

Step-by-step explanation:

all you need to do is take the starting number witch is 13 then you add 8 and then take that number and add 8 so thats why the equation is n+8 n equaling the starting number and 8 equaling to the reoccurring number.

7 0
2 years ago
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