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1 year ago

What is the y-coordinate for the solution to the system of equations?

Mathematics

1 answer:

Marina86 [1]1 year ago

7 0

Answer: i took the test and the answer was

-5

Step-by-step explanation: Good luck!

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I don't understand the question

sladkih [1.3K]

Answer: 7 pigeons sitting on the branches, 5 pigeons under the tree

=12 in total

Step-by-step explanation:

Upper branch has x pigeons, lower has y.

Top branch said: "If one of you flies up to us our number will be double yours":

Well, if one of the bottom branch flies up, the top branch will have x+1 birds and the bottom will have (y−1). The top will have double the bottom, so:

x+1=2(y−1)

Top branch said: "If one of us flies down to you, our numbers will be equal":

Now, the top branch will have x−1 and the bottom y+1. The numbers should be equal:

x−1=y+1

6 0

2 months ago

10.3.23

Helga [31]

Answer:

The probability that a high school member selected at random is on the swim team is $\frac{9}{40} = 0.225$

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: High school student.

Event B: Is on the swin team.

Probability of selecting a high school student:

Of the 1500 students, 200 are on high school. So

$P(A) = \frac{200}{1500}$

Probability of selecting a high school student who swims:

Of the 1500 students, 45 are high school students who swim. So

$P(A \cap B) = \frac{45}{1500}$

What is the probability that a high school member selected at random is on the swim team?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{\frac{45}{1500}}{\frac{200}{1500}} = \frac{45}{200} = \frac{9}{40} = 0.225$

The probability that a high school member selected at random is on the swim team is $\frac{9}{40} = 0.225$

4 0

2 years ago

Simplify 3f-2f+f I need a answer for that please

vlada-n [284]

Answer:

Step-by-step explanation:

3f-2f+f | Given

1f + f | Subtract 3f and 2f

2f | Add 1f and 1f.

7 0

2 years ago

If a study determines the difference in average salary for subpopulations of people with blue eyes and people with brown eyes is

svp [43]

Unlikely to have ????

8 0

3 years ago

PLS help

neonofarm [45]

Answer:

There is an error in line 2; segment BE should be a perpendicular bisector.

Step-by-step explanation:

I took the test, i got it right. :)

3 0

1 year ago

Read 2 more answers