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3 years ago

Y = -3x + 1 4x + y = 3 Eions? What is the solution to the system of equations

Mathematics

1 answer:

Viktor [21]3 years ago

3 0

Answer:

(2, - 5 )

Step-by-step explanation:

Given the 2 equations

y = - 3x + 1 → (1)

4x + y = 3 → (2)

Substitute y = - 3x + 1 into (2)

4x - 3x + 1 = 3

x + 1 = 3 ( subtract 1 from both sides )

x = 2

Substitute x = 2 into (1) for corresponding value of y

y = - 3(2) + 1 = - 6 + 1 = - 5

solution is (2, - 5 )

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Kala drove 250 miles using 9 gallons of gas. at this rate how many gallons of gas would she need to drive 275 miles

Rus_ich [418]

Answer:

9.9 gallons

Step-by-step explanation:

To solve this problem, we need to cross multiply. Lets input the values (250, 275, 9) as shown below:

$\frac{9}{250} = \frac{x}{275}$

Next we cross multiply. We multiply 250 and x, and we multiply 9 and 275.

$250(x) = 250x\\$

$275(9) = 2,475$

Now, lets put the values above back into the equation:

$250x = 2,475$

Lets solve this equation. First we divide 2,475 by 250, making x by itself.

$\frac{2,475}{250} =x$

$9.9 = x$

This means that to drive 275 miles, Kala would need to use 9.9 gallons of gas.

8 0

3 years ago

Find a polynomial of degree 3 with zeros of 4, 2i and -2i

andre [41]

$(x-4)(x-2i)(x+2i)=\\
(x-4)(x^2+4)=\\
x^3+4x-4x^2-16=\\
x^3-4x^2+4x-16$

7 0

3 years ago

What is the 2nd term of the linear sequence below? 5 , 8 , 11 , 14 , 17 , . . .

julia-pushkina [17]

Answer:

2nd term is 8.

nth term is 3n + 2.

Step-by-step explanation:

nth term = 5 + 3(n - 1)

= 3n + 2

5 0

3 years ago

Please help me! what does x=

marta [7]

58 degrees bra cause the arc is 58 degrees and due to congruent angles x is also 58 degrees

8 0

3 years ago

Help mmmmeeeeeeeeeeeeeeeeeee<br> will give 50 points!!!!

Likurg_2 [28]

For the above graph :

f (-4) = 1

f (2) = -5

f (0) = -3

4 0

3 years ago