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irga5000 [103]
3 years ago
11

Monica built a porch that contained 2 different colors of bricks to create a neat pattern. She purchased the red bricks at $2 ea

ch and the gray bricks for $3 each. Write and solve a system of equations that could be used to
Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

2x+3x=5x

Step-by-step explanation:

The reason for this answer is algebra. Since you give a full explanantion  on it I'm not sure if I answered it correctly. But here is what I think from what you gave of the question.  

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What is the value of x in the equation Negative two-fifths x minus 2 = 18? –50 –40 –8 –6
AveGali [126]
-2/5x -2= 18
-2/5x=18+2
Divide -2/5 with both sides
x= -50
8 0
3 years ago
Read 2 more answers
Please help I dont understand
riadik2000 [5.3K]

Answer:

2.1

Step-by-step explanation:

By the Law of Cosines,

a² = 5² + 6² - 2(5)(6)cos(20°)

a = sqrt(5² + 6² - 2(5)(6)cos(20°)), which is about 2.1

7 0
2 years ago
M(5, 7) is the mid-point of the l.ine segment joining A (3,4) to B. Find the coordinates of B.
Nina [5.8K]

Answer:

B(7,10)

Step-by-step explanation:

M(5,7)=(x ,y)\\A(3,4)=(x_1,y_1)\\B(x_2,y_2)\\\\Endpoint ;\\x = \frac{x_1+x_2}{2}\\ \\5 = \frac{3+x_2}{2}\\ Cross\:Multiply\\5\times 2 =3+x_2\\10=3+x_2\\10-3 =x_2\\7=x_2\\\\\\y = \frac{y_1+y_2}{2} \\\\7 = \frac{4+y_2}{2}\\ Cross\:Multiply\\7\times 2 =4+y_2\\14 =4+y_2\\14-4 =y_2\\10 =y_2\\\\\\B(7,10)

5 0
3 years ago
ASAP ASAP ASAP ASAP ASAP
Arisa [49]

Answer:

The answer is B

Step-by-step explanation:

6 0
3 years ago
If cos theta = -2/5 and tan theta > 0, what is the value of sin theta?
allochka39001 [22]

Because tan theta > 0 and cos theta is negative this angle is in the third quadrant.

angle whose cos is 2/5 is 66.42 degrees

The required angle is 180 + 66.42 = 246.42 degrees answer.

3 0
3 years ago
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