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Elenna [48]
3 years ago
5

Find the x-value and the y-value of the solution to this system of equations:

Mathematics
2 answers:
Serjik [45]3 years ago
7 0

Answer:

The solution is (-6, 30)

Step-by-step explanation:

Here we have two separate equations for y and are to find the solution (x, y).

y = 2x + 42

y = -5x

First, equate y = 2x + 42  and y = -5x:

2x + 42  = -5x

Combining like terms, we get

7x = -42, which results in x = -6

Since y = -5x, y = -5(-6), or y = 30, when x = -6.

The solution is (-6, 30)

Eva8 [605]3 years ago
6 0

Answer:

x=-6

y=30

Step-by-step explanation:

-5x =2x+42

x=-6

y=2(-6)+42

=30.

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The following equation defines f(x)=-3x-5 . If (-5,n) is an ordered pair of the function rule, what is the value of n?
ElenaW [278]

Given:

The function is

f(x)=-3x-5

(-5,n) is an ordered pair of the function rule.

To find:

The value of n.

Solution:

If (-5,n) is an ordered pair of the function rule, then the function must be satisfied by the point (-5,n). It means f(-5)=n.

Substitute x=-5 in the given function.

f(-5)=-3(-5)-5

f(-5)=15-5

f(-5)=10

We know that, f(-5)=n. So,

n=10

Therefore, the value of n is 10.

4 0
3 years ago
A certain forest covers an area of 1700 km^2. Suppose that each year this area decreases by 3.25%. What will the area be after 6
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Hope this helps!

4 0
4 years ago
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Alja [10]
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4 0
3 years ago
How many atoms are contained in 1cm of<br> interstellar space?
Lubov Fominskaja [6]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
PLEASE SOMEONE HELP ANWSER FOR 23 PTS
SVEN [57.7K]
I’m sorry but I don’t understand what you need help with ?
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