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2 years ago

Plz help asap with explanation and will get the brilliant

Mathematics

2 answers:

Elina [12.6K]2 years ago

8 0

3x + y = -3
-2x + y = 7
Use elimination method
Subtract both equations
5x = -10, x = -2
Plug in -2 for x (any equation)
3(-2) + y = -3
-6 + y = -3
y = 3

Solution: x = -2, y = 3
Or as a coordinate: (-2, 3)

Lina20 [59]2 years ago

3 0

Answer:

(-2,3)

Step-by-step explanation:

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Answer:

The mean will reduce

Step-by-step explanation:

The total amount of money for the ten days divided by number of days will give mean 1, M₁

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2 years ago

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Answer: It will take $\frac{7}{3}$ of an hour to complete the test.

Step-by-step explanation:

We need to convert the mixed number $1\ \frac{1}{3}$ to an improper fraction:

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Now, we need to make the following add the fractions in order to calculate how many hours will it take to complete the test. Then, we get:

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Therefore, it will take $\frac{7}{3}$ of an hour to complete the test.

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3 years ago

Determine the value of n that makes the polynomial a perfect square trinomial. Then factor as the square of a binomial. Express

blsea [12.9K]

Answer:

Step-by-step explanation:

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So in order the trinomial a perfect square we need

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2 years ago

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<h3>What is a Ratio?</h3>

A ratio shows us the number of times a number contains another number.

At the school play Abby handed out 250 programs and Kim handed out 300. Therefore, the ratio of the number of programs Abby handed out to the number programs Kim handed out is,

Ratio = (Number of programs Abby handed out)/(Number of programs Kim handed out)

Ratio = 250 / 300 = 5/6

Hence, the ratio of the number of programs Abby handed out to the number programs Kim handed out is 5/6.

Learn more about Ratios:

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2 years ago

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Step-by-step explanation:

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3 years ago

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