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Mumz [18]
3 years ago
7

What is the LCM of 12,30 and 42

Mathematics
2 answers:
Hoochie [10]3 years ago
7 0

Answer:

420

Step-by-step explanation:

We can find the prime factors of each of the numbers first before finding their LCM.

12: <em>2</em> × 2 × <u>3</u>

30: <em>2</em> × <u>3</u> × 5

42: <em>2</em> × <u>3</u> × 7

To find the LCM, we need to see if they are any common prime factors between all three numbers. The common prime factors are <em>2</em> and <u>3</u>. Then, we multiply 2 and 3 with the remaining outstanding factors, which are 2, 5, and 7.

LCM: <em>2</em> × 2 × <u>3</u> × 5 × 7 = 420

Angelina_Jolie [31]3 years ago
4 0
the answer is 420.
factors of 12: 12,2,3
factors of 30: 2,3,5
factors of 42: 2,3,7
lcm = 2 squared x 3 x 5 x 7 (cause 2 occurs in the factors of 12,30,42)
ur answer is 420 :)
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Step-by-step explanation:

let x = the number.

Now set up an equation: The product of a number (x) and -4 = -4x. So -4x is subtracted from the number - x.     x-(-4x)

Then, that equals 3 more than the number (x) = x+3

So the equation is x-(-4x)=x+3.

Then, solve the equation!

x-(-4x)=x+3

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4x=3  (Get the Xs on one side by subtracting x from both sides)

x=0.75 or 3/4  (divide by the coefficiant, 4, on both sides)

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3 years ago
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Step-by-step explanation:

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2 years ago
What do all members of the family of linear functions f(x)=1m(x+3) have in common?
dsp73
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3 years ago
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zvonat [6]

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Step-by-step explanation:

we know that    

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A is the Final Investment Value  

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substitute in the formula above  

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3 years ago
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Answer:

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