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kirill [66]
3 years ago
12

X+y=2 x-y=4 solve using elimination

Mathematics
1 answer:
Goshia [24]3 years ago
5 0

(3, -1)  Looking at the two equations I see that you have a+ y in equation one and − y in equation two. By adding the two equations together I will eliminate the y variable and then you can solve for x.

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Helllp fast please help
Snezhnost [94]

Answer: 1,347 points

Step-by-step explanation:

542 + 805 = 1,347

4 0
3 years ago
Read 2 more answers
C = k - 273.15 (a) Write two other related equations . (b) If the temperature is 23 in degrees Celsius , what is the temperature
Alona [7]

Answer:

(a) k = C + 273.15, F = 1.8(k - 273.15) + 32

(b) k = 296.15

(c) 25 celcius is greater than 300 kelvis.

Step-by-step explanation:

(a) one equation would be to solve for k instead of c, and another related equation could be from kelvin to Farenheit.

C = k - 273.15

C + 273.15 = k

k = C + 273.15

F = 1.8(k - 273.15) + 32

(b) for this one you have to substitute in the previous equation and solve for k.

23 = k - 273.15

k = 23 + 273.15

k = 296.15

(c) you have to convert either kelvins to celcius or celcius to kelvins.

C = k - 273.15

C = 300 - 273.15

C = 26.85

So 25 celcius is greater than 300 kelvis.

5 0
3 years ago
Write y=-3x+4 in standard form
motikmotik

Answer:

-3x + 4 -y = 0

Step-by-step explanation:

4 0
3 years ago
Activity
alina1380 [7]

Answer:

Step-by-step explanation:

a=2d+3

b=3d-12

c=a+b so

c=2d+3+3d-12

c=5d-9

4 0
4 years ago
Read 2 more answers
CAN YOU HELP ME PLEASE
ahrayia [7]

Answer:

3.05 yards

Step-by-step explanation:

Arc length= 2π(r)(Θ/360)

given: 7 yards is diameter, 50 degrees

radius= diameter/2 = 3.5

plug in

2π(3.5)(50/360) = 3.05 yards

8 0
3 years ago
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