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gayaneshka [121]
3 years ago
5

True or false the fraction 9/21 is in lowest terms

Mathematics
2 answers:
Darina [25.2K]3 years ago
7 0
This is false.

9/12 in it's lowest terms is 3/7.
Brums [2.3K]3 years ago
6 0
Very simple false becuse the lowest form is 3\7

<span>3\7 in decimal is </span><span>0.42857142 or 0.43 
</span> 
<span>  3\7 in percent              42.857143%  or 43 %
</span>
use math          way       .      c         o     m

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What is the portion if the base is 450 and the rate is 19%
katen-ka-za [31]

Answer:

portion = 85.50

Step-by-step explanation:

Rate = (\frac{Portion}{Base})*100%

Rate = 19%, Base = 450

19 = \frac{portion}{450} \times 100\\\\19 \times 450 = portion \times 100\\\\\frac{8550}{100} = portion \\\\portion = 85.50

8 0
3 years ago
What is 4/8 divided by 7/8
kifflom [539]

Answer: 4/7


Step-by-step explanation:

4/8 / 4/7

now you do multilpication so,

4x8

over

8x7

32/56 divided by 56/8=

4/7


hope i helped <33



8 0
3 years ago
Read 2 more answers
If you are going 100 mph how far will you go in 1 hr?
Vinil7 [7]
100 miles.  

MPH means miles per hour.  So 100 mph equals 100 miles in one hour.  
4 0
3 years ago
What is the missing length?
TEA [102]
Answer:  13.722 km ;  or, write as:  13  13/18 km .
___________________________________________________
Explanation:
___________________________________________________
Area = Length * width ; 
___________________________________________________
or, write as:  A = L * w ;
________________________

Given: A = 247 km² ; 
           
          L = 18 km ; 
 
          w = "y" ; 
________________________
 Find:  "y"
______________________________
  A = L * w ; 
______________________________
Plug in our values:
______________________________
  247 km² = 18 km * "y" ;  solve for "y" (in units of "km") ;

_____________________________
        18 y = 247 ; 
___________________________________________________________
Divide each side of the equation by "18"; to isolate "y" on one side of the equation; and to solve for "y" :
___________________________________________________________
        18 y / 18 = 247 / 18 ;
_____________________________________________
  to get:
_____________________________________________
              y = 13.7222222222222222...... km ;  round to: 13.722 km

                   or;  y = 13  13/18 km .
_______________________________________________
3 0
3 years ago
PLEASE HELP I NEED HELP!! 25 POINTS
Marysya12 [62]

60x+80=100x combine like terms

80=100x-60x or 40x divide to get x by itself

80/40=40x/40

20=x

after 20 hrs

3 0
3 years ago
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