21melodyv52 21melodyv52
  • 16-09-2021
  • Mathematics
contestada

Write the number 3.8 in the form , using integers, to show that it is a rational number.

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sqdancefan
sqdancefan sqdancefan
  • 21-09-2021

9514 1404 393

Answer:

  3.8 = 38/10 = 19/5

Step-by-step explanation:

You can always represent a terminating decimal number as the ratio of integers. Count the number of decimal places, and multiply and divide it by 10 to that power. If you like, you can reduce the resulting fraction. 3.8 has 1 decimal place, so our chosen power of 10 is 10¹.

  3.8 = (3.8×10¹)/(10¹) = 38/10 = 19/5

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