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Y_Kistochka [10]
3 years ago
9

What is the value of x in the solution to this system of equations?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer: x = 6.5

Step-by-step explanation:

A) y = -5x + 32

B) 3x - 5y = 22

Substitue what (y) equals into equation B

3x-5(-5x+32) = 22

3x + 25x -160 = 22

28x - 160 = 22

28x = 182

x = 182/28

x = 6.5

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How do you find y? Thanks. ​
andreyandreev [35.5K]
33 + 87 + x = 180
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x = 60
y + x = 180
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6 0
3 years ago
What is the greatest common factor of 15 and 64
SCORPION-xisa [38]
15 = 3*5
64= 2*2*2*2*2*2

There are no common factors so the GCF is 1
5 0
3 years ago
Let f(x) = cos(x) + 2x.<br> Where does f have critical points?
adell [148]

Answer:

<em>f</em> has no critical points.

Step-by-step explanation:

We are given:

f(x)=\cos(x)+2x

A function has critical points whenever its derivative equals 0 or is undefined.

Differentiate the function:

f'(x)=-\sin(x)+2

Since this will never be undefined, solve for its zeros:

0=-\sin(x)+2

Hence:

\displaystyle \sin(x)=2

Recall that the value of sine is always between -1 and 1.

Thus, no real solutions exist.

Therefore, <em>f</em> has no critical points.

6 0
3 years ago
It takes 28 minutes for 7 people to paint 7 walls how many minutes does it take for 14 people to paint 14 walls
Setler [38]

Answer:

56 because you have to multiply 28 times 2

6 0
3 years ago
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agasfer [191]
It would be the 2nd answer....your initial value (read from the left of the line graph) is 4.....following the line to the first even point you can see it has dropped 3 for the 4 points it has moved to the right....giving -3/4 as the rate of change.
3 0
3 years ago
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