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eimsori [14]
2 years ago
5

Select the correct answer. Given the equations `9x + (3)/(4)y = 6` and `2x + (1)/(2)y = 9`, by what factor would you multiply th

e second equation to eliminate y and solve the system through linear combinations? A. `-4/3` B. `-3/4` C. `-3/2` D. `-7/2`
Mathematics
1 answer:
Minchanka [31]2 years ago
4 0

-3/2 is the  factor would multiply the second equation to eliminate y.

The correct option is (C).

<h3>What is factor?</h3>

A number or algebraic expression that divides another number or expression evenly—i.e., with no remainder.

Given equation is :

9x+3/4 y =6

2x+1/2 y =9

If we have to eliminate the y variable so we have to multiply it by factor -3/2

Then the second equation become

-3/2(2x+1/2 y =9)

-3x- 3/4 y =- 27/2

As we can see the y variable of both the equation is same.

Hence, -3/2 is the  factor would multiply the second equation to eliminate y.

learn more about this concept here:

brainly.com/question/24182713

#SPJ1

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Answer:

(-2 ,3)

Step-by-step explanation:

Step 1: Rewrite first equation

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Step 2: Substitution

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Step 3: Solve <em>y</em>

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Step 3: Plug in <em>y</em> to find <em>x</em>

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<h3>Greatest common factor</h3>

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Given the following expressions

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Learn more on GCF here: brainly.com/question/902408

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2 years ago
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jok3333 [9.3K]

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Step-by-step explanation:

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20% of n = 0.20*84 = 16.8

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