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aleksandrvk [35]
4 years ago
9

What is the value of the x variable in the solution to the following system of equations?

Mathematics
2 answers:
hodyreva [135]4 years ago
3 0
The answer is x=3 and y=0


patriot [66]4 years ago
3 0

"3". I just took the test.

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-3(5x + 6) + 2 = 2(8 + 8x) - 1
bija089 [108]
So first, we multiply out the brackets.
-15x - 18 + 2 = 17 + 16x -1
Then, bring all the terms onto one side so you can solve.
-15x-18+2-17-16x+1=0
Then, we simplify this.
-31x-32=0
Then, isolate x
-31x=32
x=32/-31 or -1.03 (nearest hundredth )
6 0
3 years ago
Suppose Madison is traveling due west for 0.5 miles and then due south for 1.2 miles.
sweet [91]

Answer:

b) 1.3 units

b) 22.61° East of North

Step-by-step explanation:

|\vec{AB}|=\sqrt{0.5^2+1.2^2}\\\Rightarrow |\vec{AB}|=\sqrt{0.25+1.44}\\\Rightarrow |\vec{AB}|=\sqrt{1.69}\\\Rightarrow |\vec{AB}|=1.3

|\vec{AB}|=1.3\ units

Magnitude of vector AB is 1.3 units

tan\theta=\frac{0.5}{1.2}\\\Rightarrow \theta=tan^{-1}\frac{0.5}{1.2}\\\Rightarrow \theta=22.61^{\circ}

The direction of vector AB is 22.61° East of North

8 0
3 years ago
F(-2) = 3 . 4(31 + 10)
AnnZ [28]

Answer:

d

Step-by-step explanation:

4 0
4 years ago
Help help help help help help help help help help help <br><br> Pls
Pie

Answer:

$7.10

Step-by-step explanation:

Step 1: We make the assumption that 35.5 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$.

Step 3: From step 1, it follows that $100\%=35.5$.

Step 4: In the same vein, $x\%=20$.

Step 5: This gives us a pair of simple equations:

$100\%=35.5(1)$.

$x\%=20(2)$.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

Step 7: Taking the inverse (or reciprocal) of both sides yields

Hope this helps <3

3 0
3 years ago
Read 2 more answers
Find the area of the following circle.
Deffense [45]

Answer:

113.04

Step-by-step explanation:

I flipen love this but anyways so a=start with your formula which would be

A=\pi r^{2}

so then you just subsitute which then would be

3.14*6*6

and you get

113.04

anyways i hope that helps and have a great day :)

6 0
3 years ago
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