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4 years ago

3x - 4y = 18 x + 3y = -7

1 answer:

5 0

3x-4y=18
+3x   +3x
-----------------
-4y=3x+18
÷-4    ÷-4
----------------
y=-3/4x-6

x+3y=-7
-x    -x
------------
3y=-x-7
÷3    ÷3
--------------
y=-x-7/3

I think but not sure :)

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Jarrett wants to buy a really cool car but it costs $4,350 and he doesn’t have a job. The only job he can find will pay him $7.2

den301095 [7]

Answer:

30 weeks

Step-by-step explanation:

7.25 x 20 = 1 WEEK

1 WEEK= 145$

4,350 divided by 145=30

30 weeks

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3 years ago

A model of the Eiffel Tower is 41 centimeters tall. If the scale model is 1 cm/24 feet of the real Eiffel Tower, how tall is the

In-s [12.5K]

Data:

Model: 41cm

Scale: 1cm/24feet

To convert the measure of the model to the real Tower you use the scale factor

The scale factor is 24ft/cm

To know the height of the Eiffel Tower you multiply the height in the model for the scale factor:

$41\operatorname{cm}\cdot24\frac{ft}{\operatorname{cm}}=984ft$ Then so, the height of the Eiffel Tower is 984ft

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1 year ago

The graph represents this system of equations y equals 4 - x y equals x - 2 what is the solution to the system of equations

babunello [35]

The solution to the system of equations is (3,1)

Step-by-step explanation:

The system of equations represented by graph are:

$y=4-x\\y=x-2$

Solving the system of equations

Let:

$y=4-x\,\,\,eq(1)\\y=x-2\,\,\,eq(2)$

Putting value of y from eq(2) into eq(1):

$x-2=4-x\\Simplifying:\\x+x=4+2\\2x=6\\x=6/2\\x=3$

So, Value of x = 3

Putting value of x into eq(2)

$y=x-2\\y=3-2\\y=1$

So, value of y= 1

So, The solution to the system of equations is (3,1)

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

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4 years ago

52 gallons in 8<br> minutes

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3 years ago

In a volatile housing market, the overall value of a home can be modeled by V(x)=325x2-4600x+145000, where V represents the valu

shtirl [24]

Answer:

The vertex of the given equation is which shows that the value of the market after about 5 years is about 187,253.01

Functions and values

Given the overall value of a home can be modeled by

V(x) = 415x^2 – 4600x + 200000

Write in vertex form to have:

V(x) = 415x^2 – 4600x + 200000

For the given equation, the vertex occur at

Hence the vertex of the given equation is which shows that the value of the market after about 5 years is about 187,253.01

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3 years ago