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Lapatulllka [165]
3 years ago
7

Find the lcm 15 and 20​

Mathematics
2 answers:
son4ous [18]3 years ago
7 0
Answer: 60
Solution:
15 20
/ \ / \
3 5 2 10
/ \
2 5
3*5*2*2=60
Anestetic [448]3 years ago
5 0

Answer:

5

Step-by-step explanation:

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Answer is

0.8(2x-6)

Step-by-step explanation:

0.8x2x=1.6x

0.8x-6 = -4.8

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3 years ago
47​, 47​, 26​, 73​, 61<br><br> What is the mean?
77julia77 [94]

Answer:

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4 0
3 years ago
Read 2 more answers
The price of a vase was increased by 10% to £22.What was the price before the increase
Anton [14]

Answer: £20.

Step-by-step explanation:

Let the old price = £x

Percent increase. = 10%

Increment. = 10% of £x

= 10x/100

Now new price = £22

To determine the old price we have

x + 10x/100. = 22

We now multiply everything by 100 to make it a linear expression

100x + 10x = 2200

110x = 2200, therefore

x. = 2200/110

= £20

Therefore, the price before the increase. = £20.

6 0
3 years ago
Tobin is solving the equation 3(x - 1.25) = 11.25. His work is shown below.
castortr0y [4]

Answer: In the last steps, instead of multiply each side by 3, he has to divide each side by 3.

Step-by-step explanation:

Hi, Tobin makes the mistake in the last steps.

3(x-1.25) = 11.25  

3x-3.75= 11.25  

3x-3.75+3.75= 11.25+3.75  

3x = 15

Until this step is the work ok.

Now, instead of multiply each side by 3, he has to divide each side by 3:

So:

3x /3 = 15/3

x = 5

Feel free to ask for more if needed or if you did not understand something.

6 0
3 years ago
Is greater than or equal to, minus, 5.
My name is Ann [436]

Answer:

x≥-5

Step-by-step explanation:

x

7 0
3 years ago
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