Question

15 1/6 x + 0,13y при x = 18,2 и y = 7 1/13

Answer 1

15 1/6 :18,2 + 0,13* 1 1/13 = 91/6 : 91/5 + 13/10 * 14/13 = 5/6 + 7/5 = 25/30 + 42/30=67/30=3 7/30

Answer 2

To evaluate the expression 15 1/6x + 0.13y, we substitute x = 18.2 and y = 7 1/13 into the equation.

First, let's convert the mixed numbers to improper fractions:

x = 18.2 y = 7 1/13 = (13 * 7 + 1) / 13 = 92/13

Now we can calculate the expression:

15 1/6x + 0.13y

= 15 1/6 * 18.2 + 0.13 * (92/13)

= (91/6) * 18.2 + (0.13 * 92/13)

= (91/6) * 18.2 + (12/100) * (92/13)

= 91/6 * 18.2 + 12/100 * 92/13

To simplify the calculations, let's convert the fractions to decimal numbers:

= (15.1667) * 18.2 + (0.12) * (7.0769)

= 276.23434 + 0.84923

= 277.08357

Therefore, when x = 18.2 and y = 7 1/13, the expression 15 1/6x + 0.13y evaluates to approximately 277.08357.