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3 years ago

6

36 is 1/2% of what number

1 answer:

Nadusha1986 [10]3 years ago

3 0

Hey there,
36 x 1/2% = 0.18

Hope this helps :))

<em>~Top♥</em>

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Which equation has x=2/3 as a solution and why?

eduard

There are an infinite number of different equations that have
x=2/3 as the solution, or as one of several solutions.

You didn't show us your list of choices, so we can't help you
pick the right one.

Just take each choice, one at a time. Write ' 2/3 ' in place of 'x'
in each equation, and simplify everything. You'll wind up with
one equation that's true, and the others will say something that's
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The one that's true is the one that has x=2/3 as its solution.

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3 years ago

300/15 gallons. Find the unit rate

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Step-by-step explanation:

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2 years ago

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Answer:

Area: 7850 square cm

Perimeter: 314 cm.

Step-by-step explanation:

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8 0

2 years ago

Can you please Help me with this?<br><br> (Greatly Appreciated)

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3 0

3 years ago

30. What is the solution to the system of equations? (1 point)

sesenic [268]

Answer:

Option B) (-1,7,5) is correct.

The solution to the given system of equation is (-1,7,5)

Step-by-step explanation:

Given system of equations are

$-7x-2y+z=-2\hfill (1)$

$6x-y-z=-18\hfill (2)$

$5x+4y-z=18\hfill (3)$

To find the solution of the given system of equations by using Elimination method:

Now adding equations (1) and (2)

$-7x-2y+z=-2$

$6x-y-z=-18$

_________________

$-x-3y=-20$

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$-x-3y=-20$

$-(x+3y)=-20$

$x+3y=20\hfill (4)$ (since "-" getting cancelled)

Now adding equations (1) and (3)

$-7x-2y+z=-2$

$5x+4y-z=18$

_________________

$-2x+2y=16$

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$-2x+2y=16$

$2(-x+y)=16$

$-x+y=8\hfill (5)$

Now adding equations (4) and (5)

$x+3y=20$

$-x+y=8$

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$4y=28$

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$y=\frac{28}{4}$

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Substituting y=7 in equation (4)

$x+3y=20$

$x+3(7)=20$

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Therefore x=-1

Now substituting the values x=-1 and y=7 in equation (1) we get

$-7x-2y+z=-2$

$-7(-1)-2(7)+z=-2$

$7-14+z=-2$

$z=-2+7$

Therefore z=5

Therefore the solution to the given system of equation is (-1,7,5)

Therefore Option B) (-1,7,5) is correct.

8 0

2 years ago