anonymous
  • anonymous
How can 33 over 9 be expressed as a decimal? 2.3 with bar over 3 3.6 with bar over 6 4.3 with bar over 3 4.6 with bar over 6
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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♪Chibiterasu
  • ♪Chibiterasu
Divide 33 by 9.
anonymous
  • anonymous
i get 3.666667
♪Chibiterasu
  • ♪Chibiterasu
Yeah.

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More answers

♪Chibiterasu
  • ♪Chibiterasu
When a bar is over a number in a decimal that means it repeats.
anonymous
  • anonymous
so b?
anonymous
  • anonymous
yeah
♪Chibiterasu
  • ♪Chibiterasu
|dw:1442868157605:dw| yes
anonymous
  • anonymous
ok i have more :)
anonymous
  • anonymous
Simplify negative 9 over 6 divided by 3 over negative 2.. 3 1 −1 −3
anonymous
  • anonymous
b?
♪Chibiterasu
  • ♪Chibiterasu
\[\frac{9}{6 \div \frac{3}{2}}\]
♪Chibiterasu
  • ♪Chibiterasu
That?
anonymous
  • anonymous
no this..
anonymous
  • anonymous
\[\frac{ -9 }{ 6 } \div \frac{ 3 }{ -2 }\]
♪Chibiterasu
  • ♪Chibiterasu
Ok well dividing by a fraction is the same as multiplying by its reciprocal.
♪Chibiterasu
  • ♪Chibiterasu
The reciprocal is just the fraction up-side down.
♪Chibiterasu
  • ♪Chibiterasu
\[\frac{-9}{6} \times \frac{-2}{3}\]
♪Chibiterasu
  • ♪Chibiterasu
This is the exact same thing.
anonymous
  • anonymous
right and then when i solve it i get 18/ 18 which equals 1 :)
♪Chibiterasu
  • ♪Chibiterasu
Yeah.
anonymous
  • anonymous
okay next!
anonymous
  • anonymous
Which of the following numbers can be expressed as repeating decimals? 3 over 7, 2 over 5, 3 over 4, 2 over 9 2 over 9 and 3 over 4 3 over 7 and 2 over 5 2 over 5 and 3 over 4 3 over 7 and 2 over 9
♪Chibiterasu
  • ♪Chibiterasu
3/7 2/5 3/4 2/9 Right off the bat we can remove 3/4 because it is common to know this this is 0.75
♪Chibiterasu
  • ♪Chibiterasu
It is also known that x/5 is just .2, .4, .6 etc so thats also out.
anonymous
  • anonymous
ok
♪Chibiterasu
  • ♪Chibiterasu
And when you divide the rest.
♪Chibiterasu
  • ♪Chibiterasu
3/7 is pretty whacky but it repeats and so does 2/9 so yeah.
anonymous
  • anonymous
so d?
♪Chibiterasu
  • ♪Chibiterasu
Yeah. When you come across something like this you just divide all the fractions and it becomes pretty obvious. :)
anonymous
  • anonymous
ok :)
anonymous
  • anonymous
Simplify (−3.5)(−3)(−6.4). −672 −67.2 67.2 672
anonymous
  • anonymous
c?
♪Chibiterasu
  • ♪Chibiterasu
Sorry was afk
♪Chibiterasu
  • ♪Chibiterasu
Nope, the result will be negative
♪Chibiterasu
  • ♪Chibiterasu
-1 * -1 = 1 1 * -1 = -1
anonymous
  • anonymous
how
anonymous
  • anonymous
@♪Chibiterasu
anonymous
  • anonymous
they are all negative which equals positive
anonymous
  • anonymous
@♪Chibiterasu
♪Chibiterasu
  • ♪Chibiterasu
No
♪Chibiterasu
  • ♪Chibiterasu
-0 * -0 = 0 ----> 0 * -0 = -0
♪Chibiterasu
  • ♪Chibiterasu
See?
anonymous
  • anonymous
oh i get it.. so b?
♪Chibiterasu
  • ♪Chibiterasu
yeah
anonymous
  • anonymous
ok next!
anonymous
  • anonymous
Hillary jogged a total distance of 7 and 1 over 3 miles during the months of October and November. If Hillary only jogged 1 over 6 mile every day, which expression shows the number of days in which she went jogging? 7 and 1 over 3 multiplied by 1 over 6 7 and 1 over 3 plus 1 over 6 7 and 1 over 3 minus 1 over 6 7 and 1 over 3 divided by 1 over 6
♪Chibiterasu
  • ♪Chibiterasu
That would involve division to find how long she did it
anonymous
  • anonymous
d?
♪Chibiterasu
  • ♪Chibiterasu
yeah

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