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gayaneshka [121]
3 years ago
9

What’s the solution to y=-7x+1 5x+4y=-19

Mathematics
1 answer:
Eva8 [605]3 years ago
8 0

Answer:

<h2>x = 1 and y = -6 → (1, -6)</h2>

Step-by-step explanation:

y=-7x+1\qquad(1)\\\\5x+4y=-19\qquad(2)\\\\\text{Substitute (1) to (2):}\\\\5x+4(-7x+1)=-19\qquad\text{use the distributive property}\\\\5x+(4)(-7x)+(4)(1)=-19\\\\5x-28x+4=-19\qquad\text{subtract 4 from both sides}\\\\5x-28x+4-4=-19-4\qquad\text{combine like terms}\\\\-23x=-23\qquad\text{divide both sides by (-23)}\\\\\dfrac{-23x}{-23}=\dfrac{-23}{-23}\\\\x=1

\text{Substitute the value of}\ x\ \text{to (1):}}\\\\y=-7(1)+1\\\\y=-7+1\\\\y=-6

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Answer:

10

Step-by-step explanation:

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6^2+8^2=c^2

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4 0
3 years ago
The answer to math problem
Degger [83]

<em>First, you would multiply 2 x 16. </em>

2 x 16 = 32

<em>Using that number, subtract by 8. </em>

32 - 8 = 24

<em>Multiply 3 x 16. </em>

3 x 16 = 48

<em>Subtract the two numbers from step 2 and 3. </em>

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8 0
3 years ago
Write the equation of the line that passes<br> through the points (3, 1) and (-2, 6).
tia_tia [17]

Answer:

Equation is Y=mx+c (that's how I know it, it may differ)

Step-by-step explanation:

First get the slope which is M and you just gotta do the second y - the first y from the brackets and divide them by the second x - the first x

6-1 /-2-3 = 5/-5

= -1

So now u gotta find c, C= Y-mx

And u have got two brackets, which have an x and y, and u now have m.

Pick one of the brackets like (-2,6) and put them in the equation so it will be : C =6+1*-2

So C =4

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5 0
2 years ago
A car is traveling at a rate of 48 miles per hour. If the car continues to travel at this same rate, how many hours will it take
MAVERICK [17]
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5 0
3 years ago
Read 2 more answers
Graph the line with y-intercept 5 and slope 1/4?
ser-zykov [4K]
<h2>Answer:</h2>

<em>(Check the attached image).</em>

<h2>Step-by-step explanation:</h2>

<h3>1. Identify the given information.</h3>

a. We have the slope of the line, 1/4.

b. We also have a point of said line, because when the question states "y-intercept 5..." it's telling us that the lines touches the y intercept on the value y= 5, and this only happens when x= 0. Hence, a given point is (0, 5).

• Formula for constructing linear equations.

Formula: y-y_{1} =m(x-x_{1} ); where m is the slope of the function; x1 is the x value of a point the function passes through, and y1 is the y value of a point the function passes through.

<h3>2. Substitute in the formula and calculate the equation of the line.</h3>

y-(5) =(\frac{1}{4} )(x-(0) )\\ \\y-5=\frac{1}{4} x\\ \\y=\frac{1}{4} x+5

<h3>3. Graph the line.</h3>

<em>(Check the attached image).</em>

7 0
2 years ago
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