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3 years ago

Use the substitution method to solve the system of equations. 5x+2y=1 Y=-x+2

Mathematics

2 answers:

Rainbow [258]3 years ago

4 0

Answer:

X = -1

Step-by-step explanation:

Rewrite equations:

y = -x + 2; 5x + 2y = 1

Step: Solve y = -x + 2y = 1 for y:

y = -x + 2

Step: Substitute -x + 2 for y in 5x +2y =1 :

5x +2y = 1

5x +2 (-x+2) =1

3x + 4 =1 (simplifiy both sides of the equation)

3x + 4 + - 4 = 1 + -4

(Add -4 to both sides)

3x = -3

3x/3 = -3/3 (Divide both sides by 3)

x = -1

r-ruslan [8.4K]3 years ago

4 0

Answer: I believe the (-1,3) is the answer! (hope this helps!)

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Answer:

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Step-by-step explanation:

4x+12=-2x

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4 years ago

Can you please help me with this?

11Alexandr11 [23.1K]

Answer:

y=1

Step-by-step explanation:

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Well, the ratio of x:y are 3:1

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Hence, y=1

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3 years ago

25. Two planes leave the airport at the same time. Their speeds are 135mph and 162mph, and the angle between their two paths is

sdas [7]

Answer:

The two planes are 349 miles apart.

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4 years ago

A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 5 answer

choli [55]

Answer:

there is a 64% chance that the student got both problems wrong

a 32% chance that they got only 1 correct

and a 4% chance that they got both correct

Step-by-step explanation:

There are 25 total possible combinations of answers, with 8 possible combinations where the student would get 1 answer right, and 1 combination where the student would get both answers correct.

$25-9=16$

$\frac{16}{25} =\frac{x}{100}$

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3 years ago

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Scorpion4ik [409]

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Hope it helped!

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3 years ago

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