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3 years ago

11

Which number is a rational number

1 answer:

MA_775_DIABLO [31]3 years ago

5 0

Answer:

1.35 or something

Step-by-step explanation:

because a decimal is a rational number

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Christopher had 3 1/2 pies left over from the party. He qually divided the 3 and 1/2 pies between 4 of his friends. How much did

brilliants [131]

The answer is 3/8. Christopher with have to share 3/8 of pie with each of his friends.

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4 years ago

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One endpoint of a

Maurinko [17]

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3 years ago

-5x-18y=-28 and -10x+9y=-11 solve elimination

Dmitry [639]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=2,\:y=1$

Step-by-step explanation:

Given the equations

$-5x-18y=-28$

$-10x+9y=-11$

solving the system of the equation by elimination method

$\begin{bmatrix}-5x-18y=-28\\ -10x+9y=-11\end{bmatrix}$

$\mathrm{Multiply\:}-5x-18y=-28\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:-10x-36y=-56$

$\begin{bmatrix}-10x-36y=-56\\ -10x+9y=-11\end{bmatrix}$

$-10x+9y=-11$

$-$

$\underline{-10x-36y=-56}$

$45y=45$

$\begin{bmatrix}-10x-36y=-56\\ 45y=45\end{bmatrix}$

solve 45y=5 for y:

$45y=45$

$\frac{45y}{45}=\frac{45}{45}$

$y=1$

$\mathrm{For\:}-10x-36y=-56\mathrm{\:plug\:in\:}y=1$

solve $-10x-36\cdot \:1=-56$ for x:

$-10x-36\cdot \:1=-56$

$-10x-36=-56$

Add 36 to both sides

$-10x-36+36=-56+36$

$-10x=-20$

$\frac{-10x}{-10}=\frac{-20}{-10}$

$x=2$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=2,\:y=1$

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3 years ago

Which statement describes the following expression? 7 x (2,304 x 681)

pantera1 [17]

<em>7 times the value of 2,304 times 681</em><em> </em><em>.</em><em>.</em><em>.</em>

<em>This </em><em>is </em><em>your </em><em>answer.</em><em>.</em><em>.</em>

<em>Hope</em><em> it</em><em> helped</em><em> you</em><em>.</em><em>.</em><em>.</em><em> </em><em>pls </em><em>mark</em><em> brainliest</em><em> also</em>

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3 years ago

Hello - I won't be able to go to bed if I don't solve this thing.

Darina [25.2K]

Ok.... so the first part is asking you what the perimeter of the picture itself is.
The picture is 5in by 7in.... SO you add 5+5+7+7=24.... So the perimeter of the pic is 24 inches.

Now part b

So the frame is one inch thick
This mean that the sides are now 2 inches longeron each side

SO we have 7+7+9+9=32

So the perimeter is 32

I hope that helped!!!!! If you dont understand something ask and i will reexplain ;)

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3 years ago

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