All categories

3 years ago

Solve -4x – 8y = -48 8x + 3y = -34.

Mathematics

1 answer:

Likurg_2 [28]3 years ago

4 0

Answer:

x= -1/2 and -32

y = -10

Step-by-step explanation:

1) 2(-4x-8y)= (-48)2

8x+3y =-34

*to create a way to cancel out the x*

2) -8x-16y= -96

8x+3y= -34

*add them

-8x +8x =0

-16y + 3y = -13y

-96+ -34= -130

3) -13y =-130

isolate y

4) y = -10

*plug in* to find x into both original equations*

5) 8x + 3(-10) = -34. -4x-8(-10)= -48

*follow order of operations to solve for x

6) 8x -30 =-34. -4x +80 = -48

7) 8x =-4. -4x =128

8) x= -1/2. x = -32

You might be interested in

In a mixed market economy what is a typical way the government can reduce unemployment

creativ13 [48]

The can stop sending the work into forgeng country and reduce taxes

6 0

3 years ago

Suppose that on November 26, 2019, an ornamental bookcase handmade in Germany is priced at EUR 830. The approximate U.S. dollar

Klio2033 [76]

The <em>approximate</em> price for an ornamental bookcase from Germany and with a cost of EUR 830 on November 26, 2019 is equal to 753.64 USD.

<h3>How to determine the price of a good in terms of a foreign currency</h3>

Herein we have an application of <em>direct proportionality</em> model, now described:

y = k · x (1)

Where:

x - Cost of the bookcase in Germany, in euros.
k - Currency exchange rate, in US dollars per euros.
y - Cost of the bookcase in the United States, in US dollars.

If we know that x = 830 EUR and k = 0.908 USD/EUR, then the cost of the bookcase in the United States is:

y = (830 EUR) · (0.908 USD/EUR)

y = 753.64 USD

The <em>approximate</em> price for an ornamental bookcase from Germany and with a cost of EUR 830 on November 26, 2019 is equal to 753.64 USD.

To learn more on currencies: brainly.com/question/14372075

#SPJ1

6 0

2 years ago

I need help with this this is hard

saveliy_v [14]

Answer:

n > -6 and n < 8! Heart it if it was helpful :D

Step-by-step explanation:

Okay! So n has to be bigger than -6, but smaller than 8. So the inequalities are n > -6 and n < 8!

8 0

3 years ago

Read 2 more answers

Let C represent the number of hours when the sky is cloudy and L represent the number of hours when the sky

bixtya [17]

Answer:

Step-by-step explanation:A large solar panel can generate power at a maximum rate of 400400400 kilowatts per day. It generates power at a constant rate when the sky is cloudy, and it generates power at a constant rate when the sky is clear. Let CCC represent the number of hours when the sky is cloudy and LLL represent the number of hours when the sky is clear during which the solar panel can generate power without exceeding its capacity. 5C+32L \leq 4005C+32L≤4005, C, plus, 32, L, is less than or equal to, 400 According to the inequality, at what rate does the solar panel generate power when the sky is cloudy, and at what rate does it generate power when the sky is clear?

5 0

3 years ago

There is an unknown number •it is a four digit number •the tens are double the ones •the thousands are double the tens •the sum

oksano4ka [1.4K]

Answer:

8542

Statement

1.It is a four digit number

2.The tens are double the ones

3.The thousands are double the tens

4.The sum of the digits is nineteen

Step-by-step explanation: