I need help with this please

Mathematics

1 answer:

dimulka [17.4K]3 years ago

6 0

Answer:

Step-by-step explanation:

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How many different 4-digit numbers can be formed using the digits 2, 4, 5, 6, and 7 such that no digits repeat and the number is

quester [9]

If the last 2 digits of a number is divisble by 4, then the number is divisble by 4
see what combos are with ending with 2 digits divisible by 4
24
64
52
72

see their combos for the first 2 numbers
24 three other numbers to pick from so 3*2*1=6
64 three other numbers to pick from so 3*2*1=6
52 three other numbers to pick from so 3*2*1=6
72 three other numbers to pick from so 3*2*1=6

6*4=24

answer is 24 ways

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3 years ago

Choose what the expressions below best represent within the context of the word problem. The tens digit of a number is twice the

Usimov [2.4K]

<span>2x + x = 12
=> x =12/3 =4
so, original number is 84.

</span>

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4 years ago

Help help help help please guys

maria [59]

I think the answer is 9
It's a smaller version of the other figure.
21/3=7
27/3=9

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3 years ago

Solve for x & y. 30x−42y=−6 and 5x−7y=−1

vladimir1956 [14]

Um.. Both of those equations are the exact same. Divide both sides of the first equation by 6. You get:

$\frac{30x - 42y}{6} = \frac{-6}{6} \\ 5x - 7y = -1$

That is the exact same as the second equation. This system has an infinite number of solutions. 5x - 7y = -1 is a line, so basically every point on that line is a solution to the system.

For example, $x = 0$ and $y = \frac{1}{7}$ would work, but so would $x = 1$ and $y = \frac{6}{7}$

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3 years ago

Each shape is 1 whole. What fraction greater than 1 names the parts that are shaded?

jeka94

Any number over its self. for example 1,999/1,999

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4 years ago