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3 years ago

Divisibility rules 3 6 and 9

2 answers:

7 0

3 - the sum of the digits is divisible by 3
6 - the number is both divisible by both 3 and 2
9 - the sum of the digits is divisible by 9

riadik2000 [5.3K]3 years ago

3 0

If you add all of the digits of a number, and it's divisible by 3, the entire number will be divisible by 3. If the number is divisible by 2 and 3, it's divisible by 6 as well. If the digits of a number add up to a number divisible by 9, the whole number will be divisible by 9.

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2 years ago

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sammy [17]

717/3= 239

Divide 717 by 3 to get the price of one night.

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3 years ago

Find the square root. −2.25−−−−√

Andreas93 [3]

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2 years ago

Two squares have areas of 4 cm?

timofeeve [1]

Answer:

1/2

Step-by-step explanation:

First square area = 4cm^2, thus the side length is 2cm

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3 0

2 years ago

The difference between two number is 9 and the product of the number is 162 find the 2 number

erik [133]

Answer:

18 and 9

-18 and -9

Step-by-step explanation:

Let:

first number = x

second number = y

According to given conditions:

x - y = 9 ---------- eq1

x * y = 162 ------- eq2

From eq1:

x = 9 + y

Put it in eq2:

(9+ y)*y = 162

9y + y^2 - 162 = 0

y^2 + 9y -162 = 0

By factorizing we get:

y^2 -9y + 18y - 162 = 0

Taking common:

y(y - 9) + 18(y - 9) = 0

(y - 9)(y + 18) = 0

So:

y = -18 and y = 9

ignoring negative integer

Putting values of y in eq1:

x - 9 = 9

x = 9 + 9

x = 18

So the two numbers are:

18 and 9

-18 and -9

i hope it will help you!

5 0

3 years ago