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enyata [817]
3 years ago
11

Solve this system of equations using substitution. Put your answer in ordered pair form, (x,y).

Mathematics
1 answer:
Gelneren [198K]3 years ago
8 0
2x + 5y = 2
-3x - y =-3

-3x - y = -3
y = 3x - 3

substitute y = 3x - 3 into the first equation.

2x + 5y = 2
2x + 5(3x - 3) = 2
2x + 15x - 15 = 2
17x - 15 = 2

solve for x in 17x - 15 = 2

17x - 15 = 2
17x = 2 + 15
17x = 17
x = 1

substitute x = 1 into y = 3x - 3

y = 3x - 3
y = 3(1) - 3
y = 3 - 3
y = 0

(1, 0) << the answer

hope this helped, God bless!
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Answer:

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Step-by-step explanation:

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Second stop:

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16 - 7 = 9.

Third stop:

9 + 5 = 14.

14 - 2 = 12.

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2 years ago
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Answer:

Step-by-step explanation:

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leva [86]

For this case, the first thing you should know is that by definition, the vertical angles are congruent.

We have then:

∠1 and ∠2 are vertical angles.

Therefore, by definition:

∠1 = ∠2

On the other hand we have:

∠2 has a measure of 31 °.

Thus:

∠1 = ∠2 = 31 °

Answer:

the measure of ∠1 is:

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Elis [28]

Answer:

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Step-by-step explanation:

Area of a trapezium is given by the formula;

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a = 3 cm, b= 5 cm

To get; h, we use the Pythagoras theorem;

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