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VLD [36.1K]
2 years ago
6

Nayeli lights a 4\,\text{m}^24m 2 4, start text, m, end text, squared space with 121212 candles. citlali lights a 10\,\text{m}^2

10m 2 10, start text, m, end text, squared space with 303030 of the same type of candles. whose space is lit brighter?
Mathematics
1 answer:
elena55 [62]2 years ago
7 0

Using proportions, it is found that both spaces have the same brightness, as both have 3 candles per m².

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

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

For Nayeli and Citlali, the rate of candles per m² is given by:

  • N = 12/4 = 3 candles per m².
  • C = 30/10 = 3 candles per m².

Hence both spaces have the same brightness, as both have 3 candles per m².

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

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It would be: 213500 * 18/100
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So, option D is your answer.

Hope this helps!
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Please help for final exam!!! Please
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What variable did the researchers intentionally vary in the experiment, and what are the units for this variable?.
dybincka [34]

The variable the researchers intentionally varied in the experiment is time and the units of the variable is mins.

<h3>What is an independent variable?</h3>

The independent variable is the variable that the researcher varies or changes or manipulates in the course of the experiment. The independent variable usually have a direct effect on the dependent variable.

With the passage of time, the level of concentration increases. This means that time is the independent variable and concentration is the dependent variable.

Please find the required table attached. To learn more about independent variables, please check: brainly.com/question/26287880

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2 years ago
3x+5&lt;6x+8 <br> 4x+3 is &lt;7x+5
Komok [63]

The solution to the inequalities 3x + 5 < 6x + 8 and 4x + 3 < 7x + 5 is x > -1 and x > -2/3 respectively

<h3>Inequality</h3>

Inequality signs are;

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  • Less than <
  • Equal to =
  • Less than equal to ≤
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3x + 5 < 6x + 8

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3x - 6x < 8 - 5

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  • divide both sides by -3

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The inequality sign is flipped from < to greater than because of the division with negative value.

x > -1

2. 4x + 3 < 7x + 5

  • collect like terms

4x - 7x < 5 - 3

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  • divide both sides by -3

The inequality sign is flipped from < to greater than because of the division with negative value.

x > -2/3

Learn more about inequality:

brainly.com/question/25275758

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2 years ago
1. 40% of 푥 is 35. a. Write an equation that shows the relationship of 40%, 푥, and 35. b. Use your equation to find 푥. Show your
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Answer:

7876089

Step-by-step explanation:

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