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AfilCa [17]
3 years ago
6

Prime factorization of 39

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0
Lets quickly run through the prime numbers and see what it is not divisible by

39 is not divisible by 2
39 IS divisible by 3

So lets stop right here.

What is 39 divided by 3? 13 !

And 13 is a prime number too!

So that is all we can do.

So prime factorization of 39 is <u>3 x 13</u><u><em /></u>
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Are 12/7 and 36/21 proportional
anastassius [24]

Answer:

Step-by-step explanation:

Cross multiply:

12 * 21 = 7 * 36

Simplifying

12 * 21 = 7 * 36

Multiply 12 * 21

252 = 7 * 36

Multiply 7 * 36

252 = 252

Add '-252' to each side of the equation.

252 + -252 = 252 + -252

Combine like terms: 252 + -252 = 0

0 = 252 + -252

Combine like terms: 252 + -252 = 0

0 = 0

Solving

0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

(hope this helps can i plz have brainlist :D hehe)

5 0
2 years ago
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A tv costs £800. Work out the price after a 3% discount.
Blababa [14]

3% = 800/ 100 = 8, 8x3= 24

800-24 = 776

£776

5 0
2 years ago
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The perimeter, P, of a rectangle is equal to twice the sum of the length and width of the rectangle. Determine the width of a re
svetoff [14.1K]

Answer:

12 inches

Step-by-step explanation:

5 + 5 = 10

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Therefore, the answer is 12 inches.

7 0
3 years ago
2(k + 1) = -4(k - 2)​
Misha Larkins [42]

Answer:

1

Step-by-step explanation:

2(k + 1) = -4(k - 2)

2k + 2 = --4k+8

2k+4k=8-2

6k=6

k=6/6

k=1

7 0
2 years ago
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Cindy's age, x, is 3 times her age 6 years ago which equation represents the statement x=3(x-6) or x=3-6x or x=3x-6 or x=3x+6
WINSTONCH [101]
Let's denote Cindy's age which is unknown with X
We know that Cindy's age is 3 times her age 6 years ago. 
6 years ago Cindy's age was the present age (X) - 6 : X-6
The fact that the  present age is 3 times her age 6 year ago can be written as:
3*(X-6)
So, finally:
X=3*(X-6)
8 0
3 years ago
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