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Yuki888 [10]
3 years ago
13

Solve, using the substitution method.

Mathematics
1 answer:
Irina18 [472]3 years ago
5 0
     3x+2y=8                                     y=x-6
3x+2(x-6)=8                                    y=4-6
3x+2x-12=8                                    y=-2
           5x=12+8
           5x=20
            x=20/5
            x=4                                     the answer is C
     
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The value of x is? What is the value of x in this problem?
snow_lady [41]

Answer:

x=96°

Step-by-step explanation:

For the upper left angle, we know that they are supplementary, so we can find the first angle of the triangle by

180-130=50

For the bottom right angle, we know that they are supplementary, so we can find that angle by

180-134=46

As a triangle has 180 degrees, we can subtract the values of the other two angles to find the final upper right angle.

180-50-46=84

Lastly, The upper right angle and x are supplementary so we can find x by subtracting the angle from 180

180-84=x\\x=96

5 0
3 years ago
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Verizon [17]
Slope = (5 + 4)/(2 +1) = 9/3 = 3

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3 years ago
Are the brackets correct
Irina-Kira [14]

Answer:

The domain is correct

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3 0
3 years ago
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Would you say that pythagoras’ theorem holds true for hexagons as well? why or why not
kifflom [539]
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7 0
4 years ago
Two​ trains, Train A and Train​ B, weigh a total of 489 tons. Train A is heavier than Train B. The difference of their weights i
makvit [3.9K]

Answer:

Weight of Train A = 454 tons

Weight of Train B = 35 tons

Step-by-step explanation:

It is given that:

Let,

A represent weight of Train A

B represent weight of Train B

According to given information:

A + B = 489      Eqn 1

A - B = 419       Eqn 2

Adding Eqn 1 and 2

A + B + A - B = 489 + 419

2A = 908

Dividing both sides by 2

\frac{2A}{2}=\frac{908}{2}\\A = 454

Putting A = 454 in Eqn 1

454 + B = 489

B = 489 - 454

B = 35

Therefore,

Weight of Train A = 454 tons

Weight of Train B = 35 tons

5 0
3 years ago
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