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Anna007 [38]
3 years ago
12

2х + Зу = 9

Mathematics
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

3

Step-by-step explanation:

Given the 2 equations

2x + 3y = 9 → (1)

- 2x + 2y = 6 → (2)

Adding the 2 equations term by term will eliminate x

(2x - 2x) + (3y + 2y) = (9 + 6), that is

5y = 15 ( divide both sides by 5 )

y = 3

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Find the value of the expression if x=12.<br> 1. 3x
Marizza181 [45]

Answer:

36

Step-by-step explanation:

X equals 12, substitute X for 12

3(12)=36

3 0
3 years ago
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roman mixes 1.5 liters of orange juice w 800 milliliters of pineapple juice to make punch, for every 1 liter there are 1000 mill
Natali5045456 [20]

Answer:

2.3 liters

Step-by-step explanation:

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3 years ago
What’s the equation when the line is (6,5) and slope is 2/3
Vsevolod [243]

Answer:

y=2/3x+1

Step-by-step explanation:

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4 0
3 years ago
Solve the system using elimination.<br> 2x + 18y = -9<br> 4x + 18y = -27
Elan Coil [88]

First, let's cancel out the x by multiplying 2x + 18y = -9 by -2.

-2 ( 2x + 18y = -9) = -4x -36y = 18

Then, we combine the two equations.

-4x + 4x = 0

18y - 36y = -18y

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Our new equation is -18y = -9.

Now, divide both sides by -18.

-18y / -18 = y

-9/ -18 = 1/2

y = 1/2

We can plug in a value for y since y = 1/2 now.

Let's use 2x + 18y = -9

Plug in y.

2x + 18(1/2) = -9

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2x = -18

Divide by 2.

2x/2 = x

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x = -9

Lastly, we can plug in both x and y values to see it works.

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Therefore, the values of x and y does work.

x = -9

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4 0
3 years ago
On weekends a movie ticket costs $10.50. form an inequality and solve it to find the maximum number of tickets kate can buy with
Greeley [361]

$10.50

10 Tickets would be $105.00

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$105.00 + $94.50 = $199.50

$205.00 - $199.50 = $5.50 which isn't enough for another ticket.

10 Tickets + 9 Tickets = 19 Tickets.

3 0
2 years ago
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