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Katen [24]
3 years ago
14

Find three consecutive integers whose sum is 21

Mathematics
2 answers:
stira [4]3 years ago
5 0

Answer:

6 + 7 + 8 = 21

Step-by-step explanation:

6, 7, and 8 are consecutive integers.

6 + 7 is 13. 13 + 8 = 21. So, 6 + 7 + 8 are consecutive integers that equal 21.

Flauer [41]3 years ago
3 0

Answer:

6+7+8= 21

Step-by-step explanation:

6,7,8 follow consecutively. and if you add them, the sum is 21

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The recommended daily intake of a nutrients supplement for a certain age group is 800 mg per day.

Actully supplements needs vary from person to person  plus or minus 50 mg.

This means the minimum value is 800 - 50 = 750 mg per day and the maximum value is 800 + 50 = 850 mg per day.

Let x mg be a possible daily amount of nutrients supplement. Then

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Subtract 800:

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to test a hypothesis about a given variable, experimental and control groups are tested in parallel. which of the following best
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The Option A best explains the dual experiments: "In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made."

<h3>What is experimental design?</h3>
  • The process of deciding which variables to use in an experiment to test a particular hypothesis is called experimental design.
  • To properly collect data and evaluate the hypothesis, the experimental design method is used.

Now,

  • A specified variable is changed in the experimental group in a well-known fashion.
  • That selected variable is left unaltered in the control group so that comparisons can be conducted.
  • Control variables are variables that are utilized in an experiment to serve as a baseline against which the data from the experimental variables are gathered and evaluated (which is why the other answers are incorrect).
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Hence, amongst all the given options, The Option A best explains the dual experiments: "In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made."

To learn more about experimental design, refer to the link:brainly.com/question/17274244

#SPJ4

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