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olganol [36]
3 years ago
7

Pls help or your mom will kidnap you

Mathematics
2 answers:
patriot [66]3 years ago
4 0
I think this answer might be number 1 as well
andrey2020 [161]3 years ago
3 0
I think it is option 1 sorry if wrong
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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider this s
Brut [27]

Answer:

<u>The solution of this system of equation is ( 3, - 8)</u>

Step-by-step explanation:

1. Let's solve the system of equations:

First equation:

x + 2y = - 13

x = - 13 - 2y

Second equation:

12x + 5y = -4

12 * (- 13 - 2y) + 5y = - 4 (Replacing x with - 13 - 2y)

-156 -24y + 5y = - 4

-24y + 5y = - 4 + 156 (Like terms)

-19y = 152

y = - 152/19

<u>y = -8</u> (Dividing by 19)

Solving x

x + 2y = -13

x + 2 (- 8 ) = - 13

x - 16 = - 13

x = - 13 + 16

<u>x = 3</u>

2. Proving that x = 3 and y = - 8 are correct:

12x + 5y = -4

12 * 3 + 5 * -8 = -4

36 - 40 = - 4

- 4 = - 4

<u>We proved that x = 3 and y = - 8 are correct</u>

8 0
3 years ago
A store is having a sale where everything is discount 30% find the discount and the sales price if a customer buys an item that
uranmaximum [27]

Answer:

$255.50

Step-by-step explanation:

365 - 30% (109.50) = 255.50

6 0
3 years ago
What value of x is in the solution set of 3(x – 4) ≥ 5x 2?
Andrej [43]
Hope there are 

3(x-4) >= 5x^2 or this 2 from the end what mean ?

3x-12 >=5x^2

0>=5xˇ2 -3x +12 

5x^2 -3x +12 =0

D = 9 -240 = -150 so what mean that this equation has not real solutions 
5 0
3 years ago
Read 2 more answers
Convert the following degree measure to radian measure 30 degrees
insens350 [35]

Step-by-step explanation:

given 30°

converting into radian measure

= 30 * π / 180

= π / 6

6 0
3 years ago
Read 2 more answers
What value of b will cause the system to have an infinite number of solutions?
Leya [2.2K]

Answer:

-6

Step-by-step explanation:

V = 6x + b

 1/2 V -3 x = -3

V - 6x = -6

V - 6x  =  b

3 0
3 years ago
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