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Vinvika [58]
2 years ago
7

HELP PLEASE :) * giving brainliest*

Mathematics
2 answers:
Molodets [167]2 years ago
8 0

Answer:

(2,16)

Step-by-step explanation:

Step 1: Substitute -x+18 for y in y=8x:

-x+18=8x <em>Add X to both sides</em>

9x=18 <em>Divide 9 by both sides</em>

x=2

y=8(2)<em>Plug in the new value for x(which is 2) into one of the equations</em>

y=16

(2,16)

Hope this helped, good luck!

Inessa05 [86]2 years ago
5 0

Answer:

(2,16)

Step-by-step explanation:

y=-x+18

y=8x

8x=-x+18

8x+x=9x

-x+x=0

9x=18

9x/9=x

18/9=2

x=2

y=8(2)

y=16

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Softa [21]

<em><u>Answer:</u></em>

<u>x = 1, XZ = 48</u>

<em><u>Step-by-step explanation:</u></em>

So you already have the diagram with the number labeled,

4(x + 5) and 2(x + 11)

We know that Y is the midpoint between X and Z so we know that XY = YZ:

4(x + 5) = 2(x + 11)

Let's solve the equation for x:

4x + 20 = 2x + 22 (Distributive Property)

Subtract 20 from both sides:

4x = 2x + 2

Subtract 2x from both sides:

2x = 2

Divide both sides by 2:

<u>x = 1</u>

<u />

So now we know that x = 1, we want to find XZ:

XZ = 4(x + 5) + 2(x + 11)

We can plug in x (1):

XZ = 4(1 + 5) + 2(1 + 11)

Simplify:

XZ = 4(6) + 2(12)

XZ = 24 + 24

<u>XZ = 48</u>

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Step-by-step explanation:

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lesya692 [45]

Answer:

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Step-by-step explanation:

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