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andrezito [222]
3 years ago
14

Please answer ASAP!Also, please show your thinking!Thank you so much!

Mathematics
1 answer:
sweet [91]3 years ago
8 0
K=12 x=2 because 24/32 =3/4 & 9/12=3/4
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I don't not understand this please help!!!!!
vlada-n [284]
Y= -2x-1

y=x+5.......... x =y-5


sub in the x value in the first equation

y=-2(y-5)-1

y=-2y+10-1

y+2y= 9

3y=9

y=3

3 0
4 years ago
Can you please help me:)
svp [43]

Answer:

c

Step-by-step explanation:

yes c

4 0
3 years ago
Select the point that is a solution to the system of inequalities
Zarrin [17]
<h2>Hello!</h2>

The answer is:

The point that is a solution to the system of inequalities is C(4,2).

<h2>Why?</h2>

To find the point that is a solution to the system of inequalities, we need to evaluate it into the given inequalities. If the point is a solution to the system of inequalities, both inequalities will be satisfied.

We are given the inequalities:

y\leq 2x-2

y\leq x^{2} -3x

So, substituting the given points into the given inequalities, we have:

- A. (2,1)

Substituting into the first inequality, we have:

y\leq 2x-2\\\\1\leq 2*(2)-2\\\\1\leq 4-2\\\\1\leq 2

Substituting into the second inequality, we have:

y\leq x^{2} -3x

1\leq (2)^{2} -3(2)

1\leq (2)^{2} -3(2)

1\leq 4 -6

1\leq -2

Therefore, since 1 is not less or equal to -2, the point A(2,1) is not a solution to the system of inequalities.

- B. (-2,-1)

Substituting into the first inequality, we have:

y\leq 2x-2\\\\-1\leq (-2)*(2)-2\\\\-1\leq -4-2\\\\-1\leq -6

Substituting into the second inequality, we have:

y\leq x^{2} -3x

-1\leq (-2)^{2} -3(-2)

-1\leq 4 +6

-1\leq 10

Therefore, since -1 is not less or equal to -6, the point B(-2,-1) is not a solution to the system of inequalities.

- C. (4,2)

Substituting into the first inequality, we have:

y\leq 2x-2\\\\2\leq (4)*(2)-2\\\\2\leq 8-2\\\\2\leq 6

Substituting into the second inequality, we have:

y\leq x^{2} -3x

2\leq (4)^{2} -3(4)

2\leq 16 -12

2\leq 4

Therefore, since 2 is less than 6, and 2 is less than 4, the point B(4,2) is a solution to the system of inequalities.

- D(1,3)

Substituting into the first inequality, we have:

y\leq 2x-2\\\\3\leq (1)*(2)-2\\\\3\leq 2-2\\\\3\leq 0

Substituting into the second inequality, we have:

y\leq x^{2} -3x

3\leq (1)^{2} -3(1)

3\leq 1 -3

3\leq -2

Therefore, since 3 is not less than 0, and 3 is not less than -2, the point D(1.3) is not a solution to the system of inequalities.

Hence, the point that is a solution to the system of inequalities is C(4,2).

Have a nice day!

6 0
3 years ago
Factorise 18a²y - 27ay?<br>​
nexus9112 [7]

Answer:

Factorise 18a²y - 27ay

=9ay(2a-3)

3 0
3 years ago
Read 2 more answers
Convert 19 inches to centimeters. Start Fraction 2.54 centimeters Over 1 inch End Fraction 2.54 centimeters 1 inch.
Angelina_Jolie [31]

Answer:

19 in = 48.26 cm

Step-by-step explanation:

Devide 19 by 2.54 you get 48.26 cm

3 0
3 years ago
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