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Arte-miy333 [17]
3 years ago
7

Which of the following numbers is divisible by both 3 and 9?

Mathematics
2 answers:
Naya [18.7K]3 years ago
7 0

Answer: the answer is A)


Step-by-step explanation:

it is a because 7,605 is the only number that when divided by 3 and or 9 doen't have a decimal as the answer


choli [55]3 years ago
5 0

Answer:

A. 7605

Step-by-step explanation:

If a number is divisible by 9, it is also divisible by 3.

A number is divisible by 9 if the sum of its digits equals 9 or an integral multiple of 9.

A. 7605

7 + 6 + 0 + 5 = 18 (an integral multiple of 9) ; divisible by 9.

B. 7690

7 + 6 + 9 + 0 = 22 ; not divisible by 9

C. 5390

5 + 3 + 9 + 0 = 17 ; not divisible by 9

B. 4524

4 + 5 + 2 + 4 = 15 ; not divisible by 9

The only number divisible by 3 and 9 is 7605.

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1(6x - 9) = (4x - 6)
ruslelena [56]

1(6x-9)=(4x-6)  

One solution was found :

                  x = 3/2 = 1.500

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    1*(6*x-9)-((4*x-6))=0  

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

2.1     Pull out like factors :

  6x - 9  =   3 • (2x - 3)  

Equation at the end of step  2  :

 3 • (2x - 3) -  (4x - 6)  = 0  

Step  3  :

Equation at the end of step  3  :

 2x - 3  = 0  

Step  4  :

Solving a Single Variable Equation :

4.1      Solve  :    2x-3 = 0  

Add  3  to both sides of the equation :  

                     2x = 3

Divide both sides of the equation by 2:

                    x = 3/2 = 1.500

One solution was found :

                  x = 3/2 = 1.500

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Nutka1998 [239]
All we have to do is multiply the numerator by the other numerator and the denominator by the other denominator.
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