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stepladder [879]
3 years ago
10

3(x-5)<=30how do you solve this problem

Mathematics
1 answer:
earnstyle [38]3 years ago
4 0

The way that it is written is odd.

If the problem was 3(x-5)=30, it would be 3x-15=30.

Add 15 to both sides.

3x=45

Divide both sides by 3.

x=15

If it's supposed to be 3(x-5)<30, your answer would be the same, except:

x<15.

I'm not sure why it has both signs, especially next to each other.

I hope this helps :)

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The shorter side of a triangle ABC is half of the second side and a third of the longest side how does the perimeter of the tria
Liono4ka [1.6K]
In such questions we mustuse examples.....
Let's imagine that the shortest size is 1
So as it is half of the second the second must be2
As it is the third of the longest size it must be 3

To find the perimeter we must add the three sides.
1+2+3=6
Therefore the perimeter is the double of the longest size
or
The longest size is half of the perimeter

We must take one or two more examples to be sure...
I will take another one

Let's imagine that the shortest size is 5
So as it is half of the second the second must be10
As it is the third of the longest size it must be 15

To find the perimeter we must add the three sides.
5+10+15=30
Therefore the perimeter is the double of the longest size
or
The longest size is half of the perimeter



I wish I helped you ;)




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AVprozaik [17]

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Step-by-step explanation:

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PLEASE HELP...
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Step-by-step explanation:

Whenever possible, draw a diagram.  I've attached a picture of the balloon and the lines of depression (not drawn to scale, of course).

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We can use the tangents of these angles to find the base lengths of the two triangles that are formed.

tan 13° = 4 / a

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b = 4 / tan 39°

So the total distance is:

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≈ 22.2655

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Step-by-step explanation:

To find out how much Xavier earn last week, we need to multiply how much He earns per hour ($11.50) by how many hours He worked last week (13.5h), so:

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Answer:

Step-by-step explanation:

a

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