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mixer [17]
2 years ago
9

PLS HELP QUICK!!!

Mathematics
2 answers:
Trava [24]2 years ago
8 0

Answer:

The answer is (5,4)

Step-by-step explanation:

AleksandrR [38]2 years ago
3 0
<h3>Answer:  Choice B.   (5, 4)</h3>

===========================================================

Explanation:

Note the matching 4y terms in each equation. The top 4y adds with the -4y down below to get 4y+(-4y) = 0y = 0. This tells us that the y terms go away entirely.

The x terms add to 3x+2x = 5x

The constants on the right hand sides add to 31+(-6) = 25

After adding the equations straight down, we end up with this new equation of 5x = 25

Dividing both sides by 5 leads to x = 5

The answer so far is between B and D.

----------------------------

Let's use this x value to find y

Plugging x = 5 into the first equation leads to...

3x+4y = 31

3(5) + 4y = 31

15 + 4y = 31

4y = 31-15

4y = 16

y = 16/4

y = 4

Or you could use the second equation

2x - 4y = -6

2(5) - 4y = -6

10 - 4y = -6

-4y = -6-10

-4y = -16

y = -16/(-4)

y = 4

Either way, we get the same y value when x = 5.

So x = 5 and y = 4 pair up together.

Overall, the solution is (x,y) = (5, 4)

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A spinner of a board game can land on any one of three regions​labeled: A,​ B, and C. If the probability the spinner lands on B
Veseljchak [2.6K]

Answer:

The probability of the spinner landing on A is 0.1111.

Step-by-step explanation:

The possible outcomes of a board game is that it can lead on any three of the regions, A, B and C.

The probability of all the outcomes of an event sums up to be 1.

P(E) = P(E_{1})+P(E_{2})+...+P(E_{n})=1

According to the provided information:

P (B) = 3 P (A)

P (C) = 5 P (A)

Compute the probability of the spinner landing on A as follows:

P(A)+P(B)+P(C)=1\\P(A)+3P(A)+5P(A)=1\\9P(A)=1\\P(A)=\frac{1}{9}\\=0.111111\\\approx0.1111

Thus, the probability of the spinner landing on A is 0.1111.

3 0
3 years ago
Complete the ratio and find the answer
elena55 [62]

There are 12 inches in one foot. 120 x 12 = 1,440 inches. The correct ratio to be placed is the 5th one (aka 12 inches over 1 foot).

8 0
3 years ago
Brandon rode in a taxi that charges a flat fee of $2.25 and an additional $0.40 per mile of his trip. If he paid $6.80 for the c
r-ruslan [8.4K]

Answer:

11 \frac{3}{8} miles.

Step-by-step explanation:

To find how many miles Brandon rode, we can create an equation in slope-intercept form: y = mx + b

$2.25 is the flat fee, or the unchanging variable. This is our y-intercept, or b.

$0.40 is the changing variable, as it changes value depending on the amount of miles ridden. This is our slope, or m.

We know Brandon spent $6.80 on the cab ride. So, this is our y.

We get the equation: 6.80 = 0.40x + 2.25.

To solve, first subtract 2.25 from both sides of the equation:

6.80 - 2.25 = 0.40x + 2.25 - 2.25

We get: 4.55 = 0.40x

Now, just divide by 0.40 on both sides:

4.55 ÷ 0.40 = 0.40x ÷ 0.40

We get: 11.375 = x

So, Brandon rode for 11.375 miles. When converted to a mixed number, we get 11 \frac{3}{8} .

<em>I would appreciate brainliest, if not that's ok!</em>

6 0
2 years ago
Find the value of x in the parallelogram below.
Dennis_Churaev [7]

Answer:

129

Step-by-step explanation:

the 2 angles together will equal 180 because that is half of a circle a circle is 360so what you do is subtract 180 minus 51 and get 129

8 0
2 years ago
If there are 20 values in a data set in order from smallest to largest, what is
Natasha_Volkova [10]

Answer:

C The mean of the 10th and 11th values

Step-by-step explanation:

Strike the lowest and largest number until you get 1 or 2:

1, 2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20

2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19

3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18

4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17

5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16,

,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15

,7 8, 9, 10, 11, 12, 13 ,14,

8, 9, 10, 11, 12, 13

9, 10, 11, 12

10, 11,

Finding the Mean:

10+11

21

21/2

Mean:

10.5

8 0
2 years ago
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