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3 years ago

I don’t know the answer to this one

Mathematics

1 answer:

Stolb23 [73]3 years ago

8 0

The answer is A bc there’s three diagrams of 1/4 which is increasing .... so it’s multiplying and the last diagram is 3/4 ..... hopes this helps

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Simplify the linear expression by subtracting,

mr Goodwill [35]

The answer is x = 1.5

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3 years ago

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3 years ago

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How many natural numbers N have the property among 1,2,..........,N exactly 30% are divisible by 3?

k0ka [10]

Answer:

The answer is B. 2.

Step-by-step explanation:

We know that for N = 1 and N = 2, none of them are divisible by 3.

For N = 3, 33.33% are divisible by 3. For N = 4, 25% (which is already less than 30%), so N = 5 would also be less.

At N = 6, we're back up to 33.33%. N = 7 is already less than 30%.

At N = 9, you guessed it, 33.33%. N = 10 is 30% (3, 6, and 9). So we have one case.

Moving along, at N = 18, 33.33%. N = 20 is again 30% (3, 6, 9, 12, 15, and 18). Two cases now.

Finally, at N = 21, again 33.33%. N = 22 and N = 23 are both greater than 30%. As we continue this, for any N after 20, we will always be greater than 30%.

4 0

3 years ago

PLEASE HELP 30 points!!!!<br><br>what is the slope of this line in the picture?

Alex Ar [27]

The answer is 1/4
because the answer 3/12 = 1/4

6 0

3 years ago

Compute $121_3+2122_3-1200_3-2111_3$. Express your answer in base 3.

vfiekz [6]

Answer:

-221 base 3

Step-by-step explanation:

We are to calculate the value of the numbers in base 3. One of the ways to do that is to first convert each number to base 10. Do the arithmetic, then convert back to base 3.

121 base 3 +2122 base 3 - 1200 base 3 - 2111 base 3

Let's convert to base10

See attachment for details

From the workings,

121 base 3 + 2122 base 3 - 1200 base 3 - 2111 base 3 = -221 base 3

3 0

3 years ago