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Anuta_ua [19.1K]
3 years ago
11

What is the solution x+2y=7 and x-2y=-1

Mathematics
1 answer:
erica [24]3 years ago
7 0

\underline{+\left\{\begin{array}{ccc}x+2y=7\\x-2y=-1\end{array}\right}\qquad\text{add both sides of the equations}\\\\.\qquad\qquad2x=6\qquad\text{divide both sides by 2}\\.\qquad\qquad \boxed{x=3}\\\\\text{Put the value of x to the first equation}\\\\3+2y=7\qquad\text{subtract 3 from both sides}\\\\2y=4\qquad\text{divide both sides by 2}\\\\\boxed{y=2}\\\\Answer:\ \boxed{x=3\ and\ y=2\to(3,\ 2)}

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Answer:

The slope of the line is 8.

Step-by-step explanation:

The points on the straight line are:

A = (-1, -12)

B = (9, 68)

Compute the slope of the line as follows:

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

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Yuri [45]

Question:

A cafeteria offers oranges, apples, or bananas as its fruit option. It offers peas, green beans, or carrots as the vegetable option. Find the number of fruit and vegetable options. If the fruit and the vegetable are chosen at random. what is the probability of getting an orange and carrots? Is it likely or unlikely that a customer would get an orange and carrots?

Answer:

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Step-by-step explanation:

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There are 3 fruits and 3 vegetables . Therefore the total possible number of  outcomes is  = 3 \cdot 3 =  9

Now the probability of getting an orange and carrots = \frac{1}{9}

The possibility is very unlikely to happen

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