All categories

3 years ago

2x+3y=6 3x-y=2 How many solutions does this have, one, none or infinite

Mathematics

2 answers:

sergey [27]3 years ago

6 0

Y=-2/3x + 2
y=3x-2

one because the slopes are different

alexandr1967 [171]3 years ago

4 0

<span>A) 2x+3y=6
B) 3x-y=2
Multiplying equation B by 3
9x -3y = 6 then adding it to equation A
2x + 3y = 6
11x = 12
x = 12 / 11
</span>
2x + 3y = 6
3y = 6 -2x
y = 2 -(2/3)x
y = 2 -(2/3) * (12/11)
y = 2 -8/11
y = 14 / 11

Therefore, it has one solution

You might be interested in

Simplify: -2 (8 - 6s + 11t - 3u)

kati45 [8]

Answer:

Step-by-step explanation:

-16 + 12s - 22t + 6u

5 0

3 years ago

Read 2 more answers

A pizza buffet has prepared 15 pizzas to place on the line at the beginning of lunch at 11:00 a.m. The equation used to describe

Anit [1.1K]

Answer:

B. Every 16 minutes, 22 more pizzas were set out on the buffet.

Step-by-step explanation:

At 11:00 am, x would be equal to 0, and there would be 15 pizzas on the buffet line. Then, every 8 minutes, 11 more pizzas are added to the buffet line. So in 16 minutes, 22 pizzas will be added to the buffet.

$\frac{16}{8} =2\\(11)(2) = 22$

7 0

2 years ago

Which is the value of this expression when a = 5 and k = negative 2?

Brums [2.3K]

Answer:

what is the expression? please provide an expression.

4 0

2 years ago

Which ordered pair is a solution of the equation y equals x minus 3

Rom4ik [11]

Y = x-3

Basically you just need to plug in an x value and solve for y
y = x - 3
y = (4) - 3
y = 1

In this case, the ordered pair of this equation would be (4, 1)

You can do this given any x or y coordinate

Hope this helps

6 0

3 years ago

What is the value of the expression below when y= 8 and z= 9?

g100num [7]

Answer:

Step-by-step explanation:

5y-2z

1.plug in

5(8)-2(9)

2.solve

5(8)=45

3.solve

2(9)=18

4.subtract

45-18=27

___________________________

answered by aurinda

hope it helps:)

____________________________

4 0

2 years ago