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3 years ago

2x + 3y = –19 –2x − y = 1

1 answer:

6 0

The x both cancels out

So you’re left with 2y=-18 (add 3y to negative y and -19 and 1)

Divide by 2 and y equals -9

Plug in y to get x

2x + 3(-9) = -19

2x + -27 = -19

Add 27 to both sides

2x= 8

Divide by 2, x= 4

So x= 4 and y = -9

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During the 2019 regular season, the Washington Nationals professional baseball team won 93 games and lost 69 games. What percent

mote1985 [20]

The percentage of its games that the team won is 57.4%

Step-by-step explanation:

The percentage of an Event = (Number of favorable outcomes / Total

number of possible outcomes) × 100%

During the 2019 regular season, the Washington Nationals professional

baseball team won 93 games and lost 69 games

We need to find the percentage of its games that the team won

1. Find the total number of games

2. To find the percentage of win, divide the number of the won games

by the total number of games and multiply the quotient by 100%

3. To find the percentage of lose, divide the number of the lost games

by the total number of games and multiply the quotient by 100%

∵ The team won 93 games

∵ The team lost 69 games

∴ The total number of games = 93 + 69 = 162 games

∵ P(won) = [n(won)/n(all)] × 100%

∵ n(won) = 93

∵ n(all) = 162

∴ P(won) = $\frac{93}{162}$ × 100%

∴ P(won) = 57.4%

The percentage of its games that the team won is 57.4%

Learn more:

You can learn more about percentage in brainly.com/question/12960754

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8 0

4 years ago

Of all those people who enter Uncle`s Stereo, a discount electronics store in New York City, 28% purchase a digital camera, 5% b

sergeinik [125]

Answer:

25% of the people either buys a digital camera or a home theater receiver buth not both.

Step-by-step explanation:

The percentage of the customers that buy both a digital camera (D) and a home theather receiver (H) are included in the respective percentages (28% and 5%), so to calculate the percentage that buy only one of the items, we have to substract the percentage that buy both items from each of the percentages:

- If 28% of the people purchase a digital camera, and 4% buy both items, then 28-4=24% of the people buy only a digital camera.

- If 5% of the people purchase a home theater receiver, and 4% buy both items, then 5-4=1% of the people buy only a home theater receiver.

Then, we can add 24% and 1% and have that 25% of the people either buys a digital camera or a home theater receiver buth not both.

5 0

3 years ago

Table B: Garden-Type Frequencies by Row

Alborosie

Answer:

table a , have a nice day

5 0

3 years ago

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:

Lynna [10]

Y > 5x + 5 . . . (1)y > -1/2x + 1 . . . (2)
Part A: The graph of the system are two straight dotted lines with the first line passing through points (-1, 0) and (0, 5) with the region above the line shaded and the second line passing through (0, 1) and (2, 0) with the region above the line shaded. The two lines intersect at point (-8/11, 15/11).
Part B: The point (-2, 5) is included in the solution area.5 > 5(-2) + 5 and 5 > -1/2(2) + 15 > -10 + 5 and 5 > -1 + 15 > -5 and 5 > 0
hope i helped

4 0

3 years ago

Read 2 more answers

How do I solve for X?

lidiya [134]

We use the theory of Pythagoras because the triangle is right.

$AB {}^{2} = AC {}^{2} + BC {}^{2}$
since AB = AC = x
$8 {}^{2} = x {}^{2} + x {}^{2}$
$64 = 2x {}^{2}$
$32 = x {}^{2}$
$x = \sqrt{32}$
$x = \sqrt{16 } \times \sqrt{2}$
$x = 4 \sqrt{2}$

6 0

3 years ago

Read 2 more answers