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Pani-rosa [81]
2 years ago
7

Find the lowest common denominator (LCD) of these fractions. 2 12 3y

Mathematics
2 answers:
saw5 [17]2 years ago
7 0

Answer:

6y

Step-by-step explanation:

The denominators are prime numbers. So, multiply the denominators.

3y * 2 = 6y

6y is the LCD

julsineya [31]2 years ago
5 0

Answer:

its 12

Step-by-step explanation:

jus did it mark brainliest plzz

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Simplify: − 7( 21 − 16) + 3(9) (24 − 18)
Mekhanik [1.2K]
The answer to the problem is 127
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3 years ago
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Three times one number added to five times another number is 54. The second number is two less than the first. Use a system of e
worty [1.4K]

Answer:

8 and 6

Step-by-step explanation:

If you use x for the first number, and y for the second, you get equations of 3x+5y=54 and x-2=y.

You can substitute the second equation into the first one to solve it. This gives 3x+5(x-2)=54.

The brackets can be expanded to 3x+5x-10=54. Collecting like terms makes it 8x-10=54.

Next, we add 10 to both sides. This gives 8x=64.

From there, we isolate the x by dividing both sides by 8, giving x=8.

To work out the second number, we can sub 8 for x in either equation (I'm using the second one as it's simpler).

This comes to y=8-2, therefore y=6.

**This content is simultaneous equations, which you may wish to revise. I'm always happy to help!

3 0
3 years ago
Write the missing base, 64=x^2.
Alja [10]
The answer are 8
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3
9
3 0
2 years ago
Please answer 1-8 godbless​
Alexandra [31]

Answer:

1. A

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5 0
3 years ago
Multiply and simplify. (2x - 1)(6x - 7)
Kryger [21]

Answer:

D) 12x² - 20x + 7

Step-by-step explanation:

Use FOIL when multiplying 2 binomials...

FOIL is Firsts, Outsides, Insides, Lasts.  It's the order in which you multiply the numbers in the binomials...

(2x - 1)(6x - 7)    

Firsts:  (2x)(6x) = 12x²

Outsides:  (2x)(-7) = -14x

Insides:  (-1)(6x) = -6x

Lasts:  (-1)(-7) = 7

Now add them up...

12x² - 14x - 6x + 7

    12x² - 20x + 7

8 0
3 years ago
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