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Rainbow [258]
3 years ago
10

2(x-5)+3x=x+6 A)x=0 B)x=4 C)x=-1 D)x=2

Mathematics
1 answer:
alexgriva [62]3 years ago
4 0
The answer would be letter B
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Which of the following is an equation of the line through (2,3) and (-1,-12)
ahrayia [7]

Answer:

y = 5x - 7

Step-by-step explanation:

Using the equation of a line with two points

y_2 - y_1 / x_2 - x_1 = y - y_1 / x - x_1

Giving two points

( -4 , 10)(16 , -2)

x_1 = -4

y_1 = 10

x_2 = 16

y_2 = -2

Using the above formula

y_2 - y_1 / x_2 - x_1 = y - y_1 / x - x_1

-12 - 3 / -1 - 2 = y - 3 / x - 2

-15/-3 = y - 3 /x - 2

Cross multiply

-15(x - 2) = -3(y - 3)

-15x + 30 = -3y + 9

-15x + 30 + 3y - 9 = 0

-15x +30 - 9 + 3y = 0

-15x + 21 + 3y = 0

3y = 15x - 21 ( following y = mx + C

Dividing through by 3 to find y

3y/3 = 15x -21 / 3

y = 15x - 21 / 3

We can still separate

y = 15x / 3 - 21/3

y = 5x - 7

Therefore, the equation of the line is

y = 5x - 7

6 0
3 years ago
Need help with number 1.
seropon [69]

Answer:

Your answer is E.

Step-by-step explanation:

8 0
3 years ago
240 shoppers 20% got a $10 off their first purchase. About how many shoppers received $10 off their first purchase? Use an equiv
Angelina_Jolie [31]
Btw I got this answer from gauth.math answer:

7 0
2 years ago
In to see the<br><br> 2x+y=20<br><br> 6x 5y = 12
Andre45 [30]

Answer:

1: x = 10 − \frac{y}{2}

y = 20 − 2 x

2: x = \frac{25}{y}

y = \frac{25}{x}

Step-by-step explanation:

6 0
3 years ago
Hi please solve this for me!
sweet-ann [11.9K]

Answer:

Angle IEF = Angle CEH ( corresponding)

Therefore Angle CEH = 96°

8 0
3 years ago
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