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Damm [24]
3 years ago
6

Which ordered pair is the solution to the system of equations?

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
4 0
\begin{cases}-3x+4y=-20\\y=x-4\end{cases}\\\\\\-3x+4(x-4)=-20\\\\-3x+4x-16=-20\\\\x-16=-20\quad|+16\\\\x-16+16=-20+16\\\\\boxed{x=-4}\\\\\\y=x-4\\\\y=-4-4\\\\\boxed{y=-8}

Answer C.
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Y^2 + 18y - 41 = 0<br> Y= <br> Y=
lana66690 [7]

Answer:

y= -9+√122, or -9 - √122

Step-by-step explanation:

You have to solve the equation for y to find each variable of the quadratic and applying the quadratic formula.

after solved, I got the answer as decimal,

y = 2.0453610.....

i simpler form : y = 2.05

Also, an answer can be y= -9+√122, or -9 - √122

6 0
2 years ago
Which of these sets of ordered pairs would define a line with a positive slope?
Serhud [2]
The correct answer is D
8 0
2 years ago
UPS charges $8 flat fee and $0.20 for each pound. FedEx charges $3 flat fee and
Natasha_Volkova [10]

Answer:

50 lbs

Step-by-step explanation:

UPS: 8 + .20p

FedEx: 3 + .30p

8 + .20p = 3 + .30p

8  = 3 + .10p

5  =  .10p

p = 50

4 0
3 years ago
Pleaseeee help meee i dont understand
prohojiy [21]
-(5y) - y = 18
-6y = 18
y = -3
x = 5(-3)
x = -15
(-15, -3)

5x + 4(-7x - 3) = -35
5x -28x -12 = -35
-23x = -23
x = 1
y = -7(1) - 3
y = -10
(1,-10)
3 0
3 years ago
Pls help I’m giving points
Sedaia [141]

Answer:

27/16

Step-by-step explanation:

this is because i added up 1/2 and 3/4 first, which gave me 1 1/4, and i converted this into just a single fraction without a whole number to make the adding easier for me which was 5/4.  

(a whole number is the amount of times the bottom number of the fraction went into the top number so-... 4 goes into 5 one time which gives you a whole number of 1 and the fraction of 1/4. the 1 being left from the five.)

then i added 5/4 and 7/16 to get 1 11/16.  which then converted into 27/16

5 0
2 years ago
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