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3 years ago

Pls help me and show world pls :)

Mathematics

1 answer:

adoni [48]3 years ago

4 0

Answer:

add equation 2 from equation 3

Step-by-step explanation:

So, we are given equations 1, 2, and 3, but for this problem, we need to use just 2 and 3.

4x - 2y = -16

x + 2y = 6

In order to eliminate one variable, then we need to find whether there are two numbers that have the same coefficient (or multiply one by a number to make it) so that if you add/subtract two numbers, it gives you 0. So, in this problem, if you add

2y to -2y, then it gives you 0, which means that y would be canceled out.

So, the answer is the first option.

Feel free to ask any questions about clarity! (this explanation is pretty bad, but I can explain it more if you want) :D

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Zolol [24]

Answer:

75 %

Step-by-step explanation:

1500 - 375 =1125

So 1125 is spent on the gaming system

Take this over the total amount to get the decimal form

1125/1500 =.75

Change to percent form

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3 years ago

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solong [7]

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3 years ago

The issue of corporate tax reform has been cause for much debate in the United States. Among those in the legislature, 27% are R

Ilia_Sergeevich [38]

Answer:

The probability Democrat is selected given that this member favors some type of corporate tax reform is 0.6309.

Step-by-step explanation:

Let us suppose that,

R = Republicans

D = Democrats

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The information provided is:

P (R) = 0.27

P (D) = 0.56

P (I) = 0.17

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Compute the probability that a randomly selected member favors some type of corporate tax reform as follows:

$P(X)=P(X|R)P(R)+P(X|D)P(D)+P(X|I)P(I)\\= (0.34\times0.27)+(0.41\times0.56)+(0.25\times0.17)\\=0.3639$

The probability that a randomly selected member favors some type of corporate tax reform is P (X) = 0.3639.

Compute the probability Democrat is selected given that this member favors some type of corporate tax reform as follows:

$P(D|X)=\frac{P(X|D)P(D)}{P(X)} =\frac{0.41\times0.56}{0.3639}=0.6309$

Thus, the probability Democrat is selected given that this member favors some type of corporate tax reform is 0.6309.

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3 years ago

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3 years ago

Which of the following options is a better purchase for a bicycle? Option 1: A cash sale for $88

stellarik [79]

Answer:

Option 3

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