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sesenic [268]
3 years ago
9

2x + y = 93x - y = 16​

Mathematics
2 answers:
snow_tiger [21]3 years ago
7 0

Answer:

X=7 y=-5

Step-by-step explanation:

2x+y=9

3x-y=16

use the process of elimination finding out what works for one problem and try it on the other until they both work

Nesterboy [21]3 years ago
4 0

Answer:

x=5 y=-1

Step-by-step explanation:

5x=25

x=5

2(5)+y=9

10+y=9

y=-1

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Eric and Joshua are playing ping pong and pool. Joshua believes he has a good chance of beating Eric in at least one of the game
Sunny_sXe [5.5K]

The question is incomplete! Complete question along with answer and step by step explanation is provided below.

Question:

Eric and Joshua are playing ping pong and pool. Joshua believes he has a good chance of beating Eric in at least one of the games. The probability Joshua beats Eric in ping pong is 0.48. The probability Joshua beats Eric in pool is 0.46. Joshua is willing to assume the probability of Eric winning a game of ping pong is independent of him winning a game of pool.

Find the probability:

The probability that Joshua beats Eric in ping pong AND pool?

The probability that Joshua beats Eric in ping pong OR pool?

Answer:

P(pp & pool) = 22%

There is 22% probability that Joshua beats Eric in ping pong AND pool.

P(pp OR pool) = 50%

There is 50% probability that Joshua beats Eric in ping pong OR pool.

Step-by-step explanation:

The probability Joshua beats Eric in ping pong is given by

P(pp) = 0.48

The probability Joshua beats Eric in pool is given by

P(pool) = 0.46

The probability that Joshua beats Eric in ping pong AND pool is given by

P(pp & pool) = P(pp)×P(pool)

P(pp & pool) = 0.48×0.46

P(pp & pool) = 0.22

P(pp & pool) = 22%

Therefore, there is 22% probability that Joshua beats Eric in ping pong AND pool.

The probability that Joshua beats Eric in ping pong OR pool is given by

P(pp OR pool) = P(pp)×0.52 + P(pool)×0.54

Where 0.52 is the probability that Eric beats Joshua in the ping pong match (1 - 0.48 = 0.52)

Where 0.54 is the probability that Eric beats Joshua in the pool match (1 - 0.46 = 0.54)

P(pp OR pool) = 0.48×0.52 + 0.46×0.54

P(pp OR pool) = 0.25 + 0.25

P(pp OR pool) = 0.50

P(pp OR pool) = 50%

Therefore, there is 50% probability that Joshua beats Eric in ping pong OR pool.

6 0
3 years ago
Put the following equation of a line into slope-intercept form, simplifying all
blondinia [14]
I believe y=-x+8 cause you would take the 2 then subtract it to the 16 for it to turn into 2y=-2x+16 then you take the 2y and divide
7 0
3 years ago
What is the separation method of blood?​
natita [175]

Answer:

Blood separation is one of the crucial processes in a clinical lab and is usually conducted via a process called centrifugation.

7 0
3 years ago
Nathan is going to invest in an account paying an interest rate of 4.8% compounded continuously. How much would Nathan need to i
Elena-2011 [213]

Answer:

you would just 4.8 x how many years

Step-by-step explanation:

4 0
3 years ago
In the year 2007, a person bought a new car for $23500. For each consecutive year after that, the value of the car depreciated b
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Answer:

17155

Step-by-step explanation:

23500-27%-17155

To the nearest hundred: 17200.

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2 years ago
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