Niloxix Niloxix
  • 24-11-2015
  • Mathematics
contestada

Explain how estimation helps you to place the decimal point when multiplying 3.9 times 5.3

Respuesta :

WorldCitizen WorldCitizen
  • 24-11-2015
I see it like this: we mupliply almost 4 by a little more then 5, so the result will be around 20 (4*5=20) : so the decimal point must be after the 20 (and it is, the result is 20.67
Answer Link

Otras preguntas

Pioneers usually migrated west? 1 point A.Individually B.On Canals C. As Families D. On Rail Roads please help me out with this
Henry has 15 lawns mowed out of 60 lawns. What percent of the lawns does Henry still have to mow?
what power does original jurisdiction give the courts
how can solving polynomial equations help you find dimensions?
what is 3184.5641 rounded to two decimals? what about to the nearest hundred?
An electron is to be accelerated from a velocity of 3.00×106m/s to a velocity of 8.00×106m/s . Through what potential difference must the electron pass to accom
3. Riley finds out that Cooper's Storage and Shipping Company is working with a local business to package some office supplies. Some of the supplies are packed
Cora is saving for college. The first year of tuition is $7,485.00. She has a year to make this amount of money. How much should she save per month so she can m
how would I write an equation for the following problem? Find 4 consecutive even numbers whose sum is 156.
The volume of a cylinder, found using 3.14 to approximate pi, is 30,395.2 cm3, and the radius is 11 cm. What is the height of the cylinder?