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3 years ago

A) 4x + 5y = 13

Mathematics

1 answer:

Andre45 [30]3 years ago

4 0

Answer:

C) 20x + 25y = 65

−20x + 16y = 64

Explanation:

These two systems are relatively proportionate to each other because the bottom equation was multiplied by −2, while the top equation was multiplied by 5 in order to get two <em>additive-inverse</em><em> </em>coefficients to eliminate with their variables, which in this case are −20x and 20x. Additive inverses result in zero.

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Answer:

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Step-by-step explanation:

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3 years ago

Whats the simpilest form of the ratio <br>48 min to 3 hours.

MArishka [77]

15:4.

Step-by-step explanation:

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3 years ago

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3(2x) + 3(-1) = -21 <br><br>6x - 3 = -21<br> What property is being used ?

kaheart [24]

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3 years ago

Select the correct answer.

alekssr [168]

Using scientific notation, the correct statement is given by:

C. Corporation C owns the most land. Corporation A owns 8 times more land than corporation B.

<h3>What is scientific notation?</h3>

A number in scientific notation is given by:

$a \times 10^b$

With the base being $a \in [1, 10)$ .

Considering the amounts in scientific notation, the standard amounts in acres of each corporation are given as follows:

Corporation A: $3.2 \times 10^5 = 320000 = 320,000$ .

Corporation B: $4 \times 10^4 = 40000 = 40,000$ .

Corporation C: $4.3 \times 10^5 = 430000 = 430,000$ .

Hence corporation C owns the most land. 320,000/40,000 = 8, hence Corporation A owns 8 times more land than corporation B, and statement C is correct.

More can be learned about scientific notation at brainly.com/question/16394306

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2 years ago

36√(3)-(432/7+4√(3))=?

Elden [556K]

40√3+432/7 is the answer

Hope this helps :D

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3 years ago