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11Alexandr11 [23.1K]
3 years ago
13

Solve the system by substitution: 3x + 2y = 26 Y=x + 3

Mathematics
2 answers:
Orlov [11]3 years ago
5 0

Answer:

x = 4

Step-by-step explanation:

3x + 2y = 26

y = x + 3

Plug in the equation for y

3x + 2(x + 3) = 26

Multiply the 2 with what is in the parantheses

3x + 2x + 6 = 26

Combine like terms and solve for x

5x + 6 = 26

5x = 20

x = 4

oksian1 [2.3K]3 years ago
3 0

Answer

x=4, Y=7

Step-by-step explanation:

3x + 2y = 26

Y=x + 3

3x+2(x+3)=26

3x+2x+6=26

5x=20

x=4

Y=4+3

Y=7

Check

3(4)+2(7)=26

12+14=26

26=26

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Answer and Step-by-step explanation:

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Exactly one point in the plane given  the number of ordered pair

And

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4 0
2 years ago
Andrew is hiking in a mountainous area of a state park. Use the given key features to sketch a graph.
Molodets [167]

Using the features, a piece-wise function is defined, and the graph is sketched at the end of this answer.

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For the next 5 minutes, he stops to rest, at the maximum elevation of 800 feet, thus, the definition is:

h(t) = 800, 30 \leq t < 35

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Using these definitions, the graph is sketched at the end of this answer.

A similar problem is given at brainly.com/question/13205719

7 0
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Lostsunrise [7]

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8 0
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Help with math homework chapter 1 practice
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Their is this website that has any basically every calculator on it and it show work. It is called "calculator soup"

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3 years ago
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Is x - 8 a factor of the function f(x) = -2x3 + 17x2 - 64? Explain.
Oduvanchick [21]

we know that

If (x-8) is a factor of the function f(x)=-2x^{3}+17x^{2}-64

then

x=8 is a root of the function f(x)

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Verify

Substitute the value of x=8 in the function

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therefore

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