3 years ago

Use the elimination method to solve the system of equations.3x-5y= -162x+5y=31

Mathematics

1 answer:

Sholpan [36]3 years ago

8 0

5x = 15
x = 3

3(3) - 5y = -16
9 - 5y = -16
5y = -16 - 9
5y = - 25
y = - 5

(3, -5)

You might be interested in

A school debate team has 4 girls and 6 boys. A total of 3 of the team members will be chosen to participate in the district deba

Varvara68 [4.7K]

The probability that 1 girl and 2 boys will be selected is given by:
$P(1\ boy,\ 2\ girls)=\frac{4C1\times6C2}{10C3}=\frac{1}{2}$
The correct answer choice is B. 1/2.

6 0

3 years ago

Read 2 more answers

How can you use multiplication to help you divide 6000 by 20

SIZIF [17.4K]

6000/20=300

Hope this helps

5 0

2 years ago

Read 2 more answers

Subtract. (4x^2+8x−2)−(2x^2−4x+3) Enter answer, in standard form

denis-greek [22]

$(4x^2+8x-2)-(2x^2-4x+3)\\\\=4x^2+8x-2-2x^2+4x-3\\\\=(4x^2-2x^2)+(8x+4x)+(-2-3)\\\\=\boxed{2x^2+12x-5}$

7 0

3 years ago

Suppose I pick a jelly bean at random from a box containing eight red and four blue ones. I record the color and put the jelly b

Verdich [7]

I am not sure about this but in my opinion it would be 32 sorry if It's wrong. I hope this helped! :)
(I couldn't understand the question correctly)

7 0

3 years ago

Fabios had 7 points less than 2 times as many points as Carlos. Fabio scored 31 points in the game.

e-lub [12.9K]

Answer:

fabio=2(carlos)-7

31=2(x)-7

31-7=2x

24=2x

x=12

Step-by-step explanation:

6 0

2 years ago