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spin [16.1K]
3 years ago
13

4(x+3)=6x+3x+7 solve for x.

Mathematics
2 answers:
sveta [45]3 years ago
4 0

Answer:

X = 1

Step-by-step explanation:

4(x + 3) = 6x + 3x + 7 \\ 4x + 12 = 9x + 7 \\ 12 - 7 = 9 x - 4x \\ 5 = 5x \\ x = 1

nevsk [136]3 years ago
3 0

Answer: x=1

Step-by-step explanation:

4(x+3)=6x+3x+7

4(x+3)=9x+7

4x+12=9x+7

12=9x+7−4x

12=5x+7

12−7=5x

5=5x

x=1

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY!

- Cutiepatutie ☺❀❤

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3 years ago
Civil an airport, a factory, and a shopping center are at the vertices of a right triangle formed by three highways. the airport
vekshin1

Answer:

<em>The shortest possible length for the service road is 2.88 miles.</em>

Step-by-step explanation:

According to the below diagram, A, B and C are the positions of airport, shopping center and factory respectively.

Given that,  AB= 3.6 miles, BC= 4.8 miles and AC= 6.0 miles

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tan(\angle ACB)=\frac{AB}{BC} \\ \\ tan(\angle ACB)= \frac{3.6}{4.8}=0.75\\ \\ \angle ACB= tan^-^1(0.75)=36.8698.... degree

The shortest possible length for the service road from the shopping center to the highway that connects the airport and factory is BD.

That means, \triangle BCD is also a right triangle in which \angle BDC=90\°, Hypotenuse(BC)= 4.8 miles and BD is the opposite side in respect of \angle DCB or \angle ACB.

Now in right triangle BCD

Sin(\angle ACB)=\frac{BD}{BC}\\ \\ Sin(36.8698...)=\frac{BD}{4.8}\\ \\ BD=4.8*Sin(36.8698...)=2.88

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4 0
4 years ago
If 4 marbles are drawn at random all at once from a bag containing 8 white and 6 black marbles. in how many ways can we draw the
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3 0
3 years ago
-4+4 *
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Answer:

Step-by-step explanation:

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3 0
3 years ago
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