What is the value of x in this

5 1/10x - 6 4/5= 3 1/4

Step-by-step explanation:

For clarity please use parentheses around mixed numbers, for example, type in (5 1/10)x instead of 5 1/10x.

There are three differente denominators here:  10, 5 and 4.  The LCD is 20.

Rewriting this problem, we get:

(5 2/20)x - 6 16/20 = 3 5/20

Next, combine the constants  6 16/20 and 3 5/20:

(5 2/10)x = 9 21/20, or (5 2/20)x = 10 1/20

Solving for x, we divide 10 1/20 by 5 2/20:

 10.05

= 1.97 approx

   5.1

A different and faster approach would be to convert all of the fractions in the original equation to decimal fractions:

(5.1)x - 6.8 = 3.25.  Combining the constants, we get:

5.1x = 10.05, which equals 1.97 approx, as before.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.