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3 years ago

What are the various methods of solving equations and how do we find the solution(s)?

Mathematics

1 answer:

max2010maxim [7]3 years ago

4 0

Answer:

graphing : Find the intersection points

substitution method : If you have e.g. x+2y=9 and x=3+2y, we can substitute it, (3+2y)+2y=9

elimination method : Make two variables the same, minus them and solve the equation

Step-by-step explanation:

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Lady bird [3.3K]

this ? makes no sense Step-by-step explanation:

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4 years ago

Clara created the poster shown below:

lana66690 [7]

Answer:

$length=4\ cm\\width=6\ cm$

Step-by-step explanation:

Given the rectangular poster shown in the picture, you know that its dimensions (its width and its lenght) are:

$w_1=24\ cm\\l_1=16\ cm$

In order to calculate the dimensions of the rectangular at $\frac{1}{4}$ times its current size, you need to multiply the original lenght by $\frac{1}{4}$ and multiply the original width by $\frac{1}{4}$ .

Knowing this, you get:

$w_2=w_1\frac{1}{4}\\\\w_2=(24\ cm)(\frac{1}{4})\\\\w_2=6\ cm\\\\\\l_2=l_1\frac{1}{4}\\\\l_2=(16\ cm)(\frac{1}{4})\\\\l_2=4\ cm$

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3 years ago

Can someone please help me with this

Leona [35]

Answer:

The answer is about 13.7 for x

Step-by-step explanation:

Hope this helps.

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3 years ago

Solve the inequality 3 - 5(2x + 1) ≤ 10.

Rus_ich [418]

3-5(2x+1) < 10
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3 years ago

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Find the greatest common factor (GCF) of 65 and 55.

pentagon [3]

The biggest common factor number is the GCF number. So the greatest common factor 55 and 65 is 5.

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3 years ago

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