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2.3 falls exactly halfway between which two numbers? ANSWER SELECTION -2.3 and 2.3 -2.3 and 4.6 -1 and 3 -0.5 and 5.1 -0.3 and 3.3`

User DreTaX
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1 Answer

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Answer: -0.5 and 5.1

Step-by-step explanation

The midpoint formula is: m = (a+b)/2

For example, the midpoint of 4 and 8 is 6 because

m = (a+b)/2 = (4+8)/2 = 12/2 = 6

Here are the five answer choices:

  • -2.3 and 2.3
  • -2.3 and 4.6
  • -1 and 3
  • -0.5 and 5.1
  • -0.3 and 3.3

Go through each answer choice to use the midpoint formula. The goal is to get m = 2.3

Try out the first answer choice and we get (-2.3+2.3)/2 = 0, so we can rule it out.

Repeat for the other answer choices.

The answer is -0.5 and 5.1 because: (-0.5+5.1)/2 = 2.3

Use a number line to help confirm the answer is correct.

User Jbellis
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7.8k points

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