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prohojiy [21]
3 years ago
6

Simultaneous EQUATION 3x+2y=16 2x+y=9 PLS HELP I need answer quickly

Mathematics
1 answer:
Serggg [28]3 years ago
6 0

Answer:

(2, 5 )

Step-by-step explanation:

Given the 2 equations

3x + 2y = 16 → (1)

2x + y = 9 → (2)

Multiplying (2) by - 2 and adding to (1) will eliminate the y- term

- 4x - 2y = - 18 → (3)

Add (1) and (3) term by term to eliminate y

- x = - 2 ( multiply both sides by - 1 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (1)

3(2) + 2y = 16

6 + 2y = 16 ( subtract 6 from both sides )

2y = 10 ( divide both sides by 2 )_

y = 5

solution is (2, 5 )

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kakasveta [241]

The measure of ab and df are 3cm and 7.5cm respectively

<h3 /><h3>Similarity theorem of shapes</h3>

In order to determine the missing sides, we need to take the ratio of the similar sides as shown:

1) ab/de = ac/df

ab/de = ab+bc/df

Substitute the given values

ab/2 = ab+4.5/2+3

ab/2 = ab+4.5/5

2(ab+4.5) = 5ab
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3ab = 9

ab = 3cm

Hence the measure of ab is 3cm

2) ae/ce = bf/df

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24df =. 9(20)

24df = 180

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Learn more on similar shapes here: brainly.com/question/11920446

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Step-by-step explanation:

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(2+2)/2x4+16-10x2/2x3=x
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Here it is given that the width is x ft and total length of the fence is 2400 ft .

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