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krek1111 [17]
3 years ago
9

What is the Lcm of 42 and 54

Mathematics
2 answers:
Alexxandr [17]3 years ago
8 0
42 = 2 x 3 x 7
54 = 2 x 3 x 3 x 3 = 2 x 3³

42 = 2 x 3 x 7
52 = 2 x 3³
LCM = 2 x 3³ x 7 = 378

----------------------------------------------------------
Answer: The LCM is 378.
----------------------------------------------------------

Check:
378 ÷ 42 = 9
378 ÷ 54 = 7

katen-ka-za [31]3 years ago
4 0
The LCM<span> of 42 and 54 is 378.</span>
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Alyssa scored x goals during the soccer game yesterday. Today she scored 3 times as many goals. She scored a total of 4 goals du
damaskus [11]

Answer:

Alyssa had scored 3 goals today.

Step-by-step explanation:

Given:

Number of goals scored yesterday = x

Total number of goals scored in 2 games = 4

We need to find the number of goals scored today.

Solution:

Now Given:

Today she scored 3 times as many goals than yesterday.

So we can say that;

Number of goals scored today = 3x

Now we know that;

Total number of goals scored in 2 games is the sum of Number of goals scored yesterday and Number of goals scored today.

framing in equation form we get;

x+3x=4\\\\4x=4

Dividing both side by 4 we get;

\frac{4x}{4} =\frac{4}{4}\\\\x=1

Number of goals scored yesterday = 1

Number of goals scored today = 3x = 3\times1 =3

Hence Alyssa had scored 3 goals today.

6 0
3 years ago
The height of Mountain P is 1,086 feet.The height of Mountain Q is 4 times the height of Mountain P.The area model shown below r
earnstyle [38]

Answer:

A=4000, B=80, C=24

Step-by-step explanation:

You forgot to put the correct area model, I attached it to the answer.

We have the fact that Mountain Q is 4 times the height of Mountain P. That's the "4" we have in the left side of our model. It's like having a multiplication table, next to the "4" we have "A" and upper this we have "1000", the only thing we have to do is multiplify 4*1000=4000. The next letter we have is B and below it we have "320", we divided it by 4, 320/4=80. The last letter we have is C, and is below a "6", we only have to multiplify it by 4, 6*4=24.

At the end we only sum our

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8 0
2 years ago
What Is the distance between the points <br><br> (5,2) and (5,18)?
Delvig [45]
The distance between (5,2) and (5,18) is (0,16)

4 0
3 years ago
Someone please help me I don’t know this :(
Shalnov [3]

9514 1404 393

Answer:

  x = 10; WX = 5; HJ = 10

Step-by-step explanation:

The hash marks indicate that points W and X are midpoints of their respective segments. That makes WX a midline of the triangle. The midline is always half the length of the base (HJ). We can use this fact to write an equation relating the lengths.

  HJ = 2·WX

  x = 2(x -5) . . . .substitute the given expressions

  x = 2x -10 . . . . eliminate parentheses

  10 = x . . . . . . . add 10-x to both sides

This value of x tells you that ...

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4 0
2 years ago
What is the cube root of -216?
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