2 years ago

How do you show your work on questions that are confeusing when you show your work

Mathematics

1 answer:

elixir [45]2 years ago

8 0

Answer:

Where is the question??

Step-by-step explanation:

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Solve for x & y. 30x−42y=−6 and 5x−7y=−1

vladimir1956 [14]

Um.. Both of those equations are the exact same. Divide both sides of the first equation by 6. You get:

$\frac{30x - 42y}{6} = \frac{-6}{6} \\ 5x - 7y = -1$

That is the exact same as the second equation. This system has an infinite number of solutions. 5x - 7y = -1 is a line, so basically every point on that line is a solution to the system.

For example, $x = 0$ and $y = \frac{1}{7}$ would work, but so would $x = 1$ and $y = \frac{6}{7}$

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2 years ago

How many grams are in 15 kilograms? 1.5 150 1,500 15,000

diamong [38]

15000 because 15kg x 1000 = 15000g

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2 years ago

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Identify the slope by converting standard form into slope-intercept form.<br> 12x - 9y = -9

Novosadov [1.4K]

Answer:

4/3

Step-by-step explanation:

12x-9y=-9

9y=12x-(-9)

9y=12x+9

y=12/9x+9/9

y=4/3x+1

y=mx+b where m=slope and b=y-intercept,

so the slope is 4/3

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2 years ago

8 3/5 - ( 1 1/2 x 3 1/5 )

Ber [7]

8 3/5 - (1 1/2* 3 1/5)
= 43/5 - 24/5
= 19/5
= 3 4/5

Final answer: 3 4/5~

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2 years ago

A system of two linear equations has no solution. Describe the graph of the system

tiny-mole [99]

graph of a linear equation is a line, two linear equations has no solution mean two lines has no intersect/common point, those two lines must be parallel

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2 years ago