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r-ruslan [8.4K]
3 years ago
5

I need help with this problem :) I just need answers for the unanswered questions (3 and 4).

Mathematics
1 answer:
hram777 [196]3 years ago
3 0
I did all the work XD

Only now realized you needed only 3 and 4.

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Solve the solution of equations. <br><br> 3x + 4y = -23<br><br> X = 3y + 1 <br><br> X = <br><br> Y =
Greeley [361]

Answer:

<h2>x = -5</h2><h2>y = -2</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}3x+4y=-23&(1)\\x=3y+1&(2)\end{array}\right\\\\\text{Substitute (2) to (1):}\\\\3(3y+1)+4y=-23\qquad\text{use the distributive property}\\\\(3)(3y)+(3)(1)+4y=-23\\\\9y+3+4y=-23\qquad\text{subtract 3 from both sides}\\\\13y=-26\qquad\text{divide both sides by 13}\\\\\boxed{y=-2}\\\\\text{Put the value of }\ y\ \text{to (2)}:\\\\x=3(-2)+1\\\\x=-6+1\\\\\boxed{x=-5}

4 0
3 years ago
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A sail boat has a sail in the shape of an isosceles triangle. the base of the triangle is 16 feet in length. the height of the s
lapo4ka [179]

Answer:

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Step-by-step explanation:

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hope i'm right

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3 years ago
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Find the two points on the line to be graphed 4x+4y=-9
Blababa [14]
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to find xintercept let y=0
0=-x-9/4
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BabaBlast [244]

Answer:

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Step-by-step explanation:

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What is the value of x 3 (x+2)=12
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<span>3 (x+2)=12
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3 years ago
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