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Harrizon [31]
3 years ago
13

HELP ME PLS I NEED TO FIGURE OUT 8/15 TIMES -3/10!!!!! PLS TELL ME

Mathematics
2 answers:
DochEvi [55]3 years ago
8 0
The answer is:   " - 4/25 "  ; or, write as:  " - 0.16 " .
___________________________________________________
Explanation:
___________________________________________________
Method 1):
_______________________________________________________
       8/15 * -3/10 ;   the  (-3) cancels to "-1" and the "15" cancels to "5" ;
                                 {"Since:  (15÷3=5} ; and since:  (-3÷3= -1} ; 

                              the "8" cancels to a "4" ; and the "10" cancels to a "2" ;
                                  {"Since:  (8÷2=4) ; and since:  {10÷2 =5} ;

And we can rewrite the problem as:
                                4/5  *  -1/5 ;
_______________________________________________________
                                             →  4/5  *  -1/5  = (4*-1) / (5*5) ;

                                                                     =  - 4/25 ; 
                                                                             {or, write as:  "-0.16 " }.
_________________________________________________________
Method 2)
_________________________________________________________
 8/15 * -3/10 = (8*-3) / (15*10) '

= -24/150 = ? ;

 Divide each side of this "fraction" by: "6" ;

   (-24÷6) / (150÷6) = " - 4/25 "; or, write as:  " - 0.16" .
___________________________________________________________

Galina-37 [17]3 years ago
7 0
The answer is .1599 just cross cancel to find answer.
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<h3>What are the median and the quartiles of a data-set?</h3>

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Me = (19 + 23)/2 = 21.

The first quartile is the median of 6, 7, 8, 8, 16, which is the third element of 8.

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Find x: 3/(x-4)(x-7) + 6/(x-7)(x-13) + 15/(x-13)(x-28) - 1/x-28 = -1/20
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The value of x<em> </em>in the polynomial fraction 3/((x-4)•(x-7)) + 6/((x-7)•(x-13)) + 15/((x-13)•(x-28)) - 1/(x-28) = -1/20 is <em>x </em>= 24

<h3>How can the polynomial with fractions be simplified to find<em> </em><em>x</em>?</h3>

The given equation is presented as follows;

\frac{3}{(x - 4) \cdot (x - 7) }  + \frac{6}{(x - 7) \cdot (x - 13)   }  + +\frac{15}{(x - 13) \cdot (x - 28) } - \frac{1}{(x - 28)  } =  -  \frac{1}{20}

Factoring the common denominator, we have;

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Simplifying the numerator of the right hand side using a graphing calculator, we get;

By expanding and collecting, the terms of the numerator gives;

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