How many 4-digit numbers can be formed using the numbers 4, 5, 6 and 7? How many of the 4-digit numbers are less than 7000?

1 answer:

7 0

4000,5000,6000!!!!!!!

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PSYCHO15rus [73]

Answer:

x = 8 - 3y

Step-by-step explanation:

$21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}$

Hope this helps.

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katrin2010 [14]

29,032,000,000 is the standard form

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Anastaziya [24]

Answer:

I think the answer is D but I'm not 100 percent sure. I hope this helps

Step-by-step explanation:

I think I took this test before

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Airida [17]

Answer:

the answer is d.

Step-by-step explanation:

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2 years ago

sveta [45]

Answer:

which of the following angles are congruent to 6? select all that apply.

A. 1

B. 3

C. 2

D. 4

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2 years ago