2 years ago

Please help me!

1 answer:

5 0

<span>4x + 3y = 12
-2x - 5y = 1
multiply bottom by 2
</span><span>4x + 3y = 12
-4x - 10y = 2
add both equations
-7y = 14
divide by 7
y = -2
plug into first equation
4x + 3(-2) = 12
solve for x
4x = 18
x = 4.5

</span>

You might be interested in

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

Eduardwww [97]

The answer is d 0.1730

4 0

3 years ago

At the moment a certain medicine is injected, it’s concentration in the bloodstream is 120 milligrams per liter. From that momen

PSYCHO15rus [73]

Answer:

C(t)=120(0.7)^t

Step-by-step explanation:

4 0

3 years ago

In 2007 the population of the town of Cartersville was 24,455. The population growth can be represented by the formula P = 24,45

Triss [41]

P = 24455 (1.03)x
30,000/24455 (1.03) < x
The year must be > 1.19 + 2007, or 2008.19, which means in 2009, or in 2008 + 3 months

3 0

2 years ago

Which graph matches the equation y+3=2(x+3)? Mark this and return

harkovskaia [24]

Answer:

x= y+3/2 -3

Step-by-step explanation:

y+3/2=x+3

y+3/2-3=x

5 0

2 years ago

Read 2 more answers

A sign on Corey's house says it was built in MDCCCXXX. What year is this?

Bad White [126]

It is approximately 1830.

M=1000

D=500

C=100

X=10

7 0

3 years ago