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frutty [35]
3 years ago
6

Solve the system by the elimination method. 6x + 2y = -16 -x - 3y = -16

Mathematics
2 answers:
LenKa [72]3 years ago
7 0

the answer is (5,7) to this question

tamaranim1 [39]3 years ago
6 0

Answer:

y=7 x= -5

Step-by-step explanation:

You must eliminate on of the variables. Choosing x is easier because you only have to multiply -x - 3y = -16 by 6

6(-x - 3y = -16)

-6x - 18y = -96

Then you want to add the equations

6x +2y = -16

+ -6x - 18y = -96

-16y=-112

divide the -16 to get y by itself

y=7

To get the value of x, plug in the value of y into one of the equations and solve for x

-x-3(7)=-16

-x-21=-16

   +21

-x= 5

-x=5/ -1

x=-5

I hope it helps!

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vlabodo [156]

The monthly  payment on the mortgage is option C) $2537.44

<u>Step-by-step explanation</u>:

  • Principal (P): $ 295,000
  • Rate (r): 6.3%  = 0.063
  • Number of times compounded (n): 12months\times15 years = 180
  • Number of years = 15

The formula is A = P(1 + r/n)^nt

⇒ A = 295000(1+0.063/180)^(180\times15)

⇒ A = 295000(180.063/180)^2700

⇒ A = 295000 (1.00035)^2700

⇒ A = 758854.5

Interest = Amount - Principle

⇒ 758854.5 - 295000

⇒ Interest = 463854.5

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The monthly  payment on the mortgage = 2576.9 (approximately option C)

8 0
3 years ago
for every person that has gotten chicken ps4 there are 8 people that have had the chicken pox vaccine therefore never having chi
Snezhnost [94]

Answer:

What does a PS4 have to do with chicken pox...

Step-by-step explanation:

7 0
2 years ago
two brothers marco and fernando are training for a marathon marco runs at a rate of 6miles per hor. Fernando funs at at a rate o
satela [25.4K]
We know that
speed=distance/time
solve for time
time=distance/speed

in this problem
<span>Marco runs at a rate of 6 miles per hour. 
</span><span>Fernando funs at a rate of 7.2 miles per hour
Difference=7.2-6=1.2 miles/hour
so
speed=1.2 miles/hour
distance=0.3 miles
time=?
</span>time=distance/speed-----> 0.3/1.2-----> 0.25 hour-----> 0.25*60=15 minutes
<span>
the answer is
0.25 hour (15 minutes)

Alternative Method
Let 
x---------> Fernando's distance when Marco is 0.3 miles apart

</span>Fernando funs at a rate of 7.2 miles per hour
<span>for distance =x
time=x/7.2------> equation 1

</span>Marco runs at a rate of 6 miles per hour. 
for distance=x-0.30
time=(x-0.30)/6------> equation 2

equate equation 1 and equation 2
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7.2x-6x=2.16------> x=2.16/1.2-------> x=1.8 miles

time=x/7.2-----1.8/7.2=0.25 hour
6 0
3 years ago
Use slopes and y-intercepts to determine if the lines y=−x2+14 and 3x−4y=−1 are parallel.
Keith_Richards [23]
Answer: the lines are not parallel.


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Which of the following functions are an example of exponential growth ?
yanalaym [24]

Answer:

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8 0
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