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aleksklad [387]
3 years ago
11

What is 3x - y = 17 x + y = -5

Mathematics
1 answer:
Virty [35]3 years ago
3 0

Answer:

{x,y}={6,1}

Step-by-step explanation:

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Lines A, B, and C show proportional relationships.
valentina_108 [34]

For line A,

if we increase x by 1 unit then y increases by 4 units i.e. (1,3) and similarly another point becomes

(2,7).

For line B,

if we increase x by 1 uni then y also increases by 1 unit i.e ( 1,1) and similarly another points becomes (2,2),(3,3),(4,4), etc.

For line C,

if we increase x by 3 units then y increases by 1 units i.e.(3,1) and similarly another points becomes

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In above lines, the value of x is exactly equal to that of y in line B.

therefore, line B has constant proportionality between x and y.

7 0
2 years ago
What expression is equivalent to 12x^4/4x^16 helpppp
adoni [48]

Answer: 48x/64

Work (assuming ^ is multiplication):

12x^4/4x^16

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3 0
1 year ago
I sent a photo of question pls help
statuscvo [17]
Answer should be 2, 7/2 hopefully this helped ^^
3 0
2 years ago
I need help with these three problems (college algebra)
Paraphin [41]

5. After 6 hours, the concentration is halved. After 12 hours, it will be quartered. If the original concentration is 200 nmol, a quarter is 50 nmol.

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15. The concentration is halved every 8 hours and the original concentration is 100 nmol. So now, how many times do you halve 100 to get to 12.5?

100/2 = 50, 50/2 = 25, 25/2 = 12.5. That's three times. 3 * 8 is 24 hours, or 1 day.

8 0
3 years ago
Read 2 more answers
Plz find c) arc XYR thank you
Butoxors [25]
XYR=36 hope this helps I actually don't know if it is right so I'm so sry if it is wrong so sry
4 0
3 years ago
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