Is 102 divisible by 4 5 6 9 or 10 PLEASE HELP I AM FAILING AND ABOUT TO CRY!!!!

Answers

Answer 1

Answer: It can't be divided by 5 or 10 since when you count by 10's the numbers end in only zeros and when you count by 5 it is either 5 or 0 (5, 10, 15, 20 and so on).

9 will only work if the digits in the answer add up to 9. 18: 1+8=9
99: 9+9=18 and 1+8=9 So it can't be divided by 9 102: 1+0+2=3 (not 9)

That leaves 6 and six works - here's why.
There is a rule for 3's that says that the sum of the digit must add up to 3, 6 or 9.
Look:
3x1 = 3
3 x 2 = 6
3 x 3 = 9
3 x 4 = 12 and 1+2=3
3 x 5 = 15 and 1+ 5 = 6
3 x 6 = 18 and 1+ 8 = 9
3 x 7 = 21 and 2 +1 = 3 and so on - do you see the 3,6,9 pattern repeating.

Six follows the same rule except the number must be even. Look above to see that 6 works with 6, 12 and 18 but not the others.
So 102 is divisible by 3 (1+0+2 = 3) AND it is an even number - therefore it is divisible by 6. Here's proof: 6 x 15 = 90 and 102 is 12 more than 90 and six goes into that 12)

I hope that this will help you feel better. I don't want you to cry. :-)

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Is 5.33 a rational number

Answers

Yes it's rational because it is a fraction 5.33/100

Is this right ? Help

Answers

Yes i should be. If its not, your teacher is wrong.

Yes, it seems like your answer is correct

What is the sum of 1/2 and 1/3

Answers

1/2+1/3=
3/6+2/6=5/6
The answer is 5/6.

the answer is 0.833333 repeating. you get that because
1/2=0.5 and 1/3=0.33 repeated then you add them together and get 0.8333 repeated.

teachers divided students into groups of 3. each group of 3 wrote a report that had 9 pictures in it. the students used 585 pictures altogether. how many students were there in all?

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there were 195 students all together

198 students because you divide 585 by 9 then multiple by 3

-2/9 (-1/3 divied by 3/5)????????????????????????????? please hurry

Answers

Answer:

2/405

Step-by-step explanation:

Simplify the following:

(-2)/9×((-1)/3×1/3)/5

(-1)/3×1/3 = (-1)/(3×3):

(-2)/9×((-1)/(3×3))/5

(-1)/(3×3)×1/5 = (-1)/(3×3×5):

(-2)/9×(-1)/(3×3×5)

(-2)/9×(-1)/(3×3×5) = (-2 (-1))/(3×3×5×9):

(-2 (-1))/(3×3×5×9)

3×3 = 9:

(-2 (-1))/(9×5×9)

9×5 = 45:

(-2 (-1))/(45×9)

45×9 = 405:

(-2 (-1))/405

-2 (-1) = 2:

Answer: 2/405

A teacher surveyed his class about how many wore watches and how many wore rings. The Venn diagram shows her results. If a person from the class is randomly selected, what is the probability that person wears a watch given that they wear a ring? P( watch | ring )

A. 7/12
B. 1/6
C. 1/12
D. 2/7
URGENT PLEASE HELP

Answers

I think it’s C I hope that helps

Answer:

Step-by-step explanation:

Person who wears a watch + ring

Lets say the fraction of people wearing the rings is 1/X

Lets say the fraction of people wearing a watch is 2/y

The formula is multiplication for both (Key words: and)

The formula is add for one or the either (key words: or)

The question says that person wears a watch given that they wear a ring

It mean that they wear a watch + a ring.

THat mean multiplication!

Lets use the example: 1/x · 2/y = 2/xy

This makes 2/xy your answer for the example.

Now lets do another example:

Lets say the fraction of people wearing the rings is 1/3

Lets say the fraction of people wearing a watch is 2/3

Multiplication!!!!

1/3 x 2/3 = 2/9

This makes 2/9 your answer to this example!!!!

Hope I helped a lot!!!!!!!!!!!!!!!!!!

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