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Debora [2.8K]
3 years ago
13

Which graph shows a system of equations with a solution at (–1, 1)?

Mathematics
2 answers:
Reika [66]3 years ago
5 0
Please include a picture of the graphs in the problem.

Your system of equations must intersect at
(-1, 1).
Paraphin [41]3 years ago
5 0

Answer:

<h2>The right answer is the second graph.</h2>

Step-by-step explanation:

All choices are attached.

Each graph is representing a system of equations which is not linear, because a parabola is not a linear relation.

According to the problem, we have to choose the system which solution is (-1,1). To do so, we just have to observe which graph has an interception point at (-1,1).

You can observe that the second graph has the interception point at (-1,1), that is, both functions has that point in common, because they intercept there.

Therefore, the right answer is the second graph.

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The Davidson Winery is noted for its Regal Champagne. It takes the blending of 1,000 bushels of a mixture of two varieties of gr
aniked [119]

Answer: 600 bushels of 10% alcohol content and 400 bushels of 15% alcohol content.

Step-by-step explanation:

Let we add x quantity of 10% of alcohol content and y quantity of 15% alcohol content for making 12% of alcohol content mixture.

Then according to the question, 10% of x + 15 % of y = 12% of 1000

⇒ 0.1x + 0.15y = 120

⇒ 10x + 15y = 1200

⇒ 2x +3y  = 2400 -------- (1)

And, x + y = 1000

⇒ 2x + 2y = 2000 ---------(2)

Equation 1) - equation 2)

We get y = 400

By putting the value of y in equation 1),

⇒2x + 1200 = 2400

⇒ 2x = 1200

⇒ x = 600

Thus, he needs to mix 600 bushel of 10% of alcohol content with 400 bushels of 12% of alcohol content for getting 1000 bushels of 12% of alcohol content.




5 0
2 years ago
Factor completely. 2ay 2 5ay - 3a
stiv31 [10]
Hello,

2ay²+5ay-3a=a(2y²+5y-3)
=a(2y²+6y-y-3)=a(2y(y+3)-(y+3))
=a(y+3)(2y-1)

8 0
3 years ago
A math class has a total of 31 students. The number of females is seven less than the number of meals. How many miles and how ma
Nadusha1986 [10]

Answer:

Male-19&Female-13

Step-by-step explanation:

See the image for solution

Hope it helps

Have a great day

3 0
2 years ago
You estimate that there are 80 marbles in a jar. the actual amount is 76 marbles. find the percent error. round to the nearest t
yKpoI14uk [10]
76/80

Just divide 76 out of 80 and round it to the nearest hundredth Or at least that’s what I think
7 0
2 years ago
Read 2 more answers
What is the constant variation of k and what’s the equation
AlekseyPX

Answer:

dhfghnvgntgf

Step-by-step explanation:

gfhhnfghgf hbv hn g

6 0
2 years ago
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