Respuesta :

znk

Answer:

0.32 or 8/25

Explanation:

2⅐/15a = ⁵/₁₄/0.8     Multiply both sides by 14

30/15a = 5/0.8        Invert each side

15a/30 = 0.8/5        Multiply each side by 30

15a = 0.8/5 × 30     Divide each side by 15

a = 0.8/5 × 30/15

a = 0.16 × 2

a = 0.32

If you want the answer as a fraction

a = 32/100 = 8/25

Following are the solution to the given expression:

Given:

[tex]2 \frac{1}{7} :(15 a)= \frac{5}{14} :(0.8)[/tex]

To find:

a=?

Solution:

[tex]\to 2 \frac{1}{7} :(15 a)= \frac{5}{14} :(0.8)\\\\\to \frac{\frac{15}{7}}{(15 a)}= \frac{\frac{5}{14}}{(0.8)}\\\\\to \frac{15}{7}\times 0.8 = \frac{5}{14} \times 15 a\\\\\to \frac{15}{7} \times 0.8 \times \frac{14}{5}= 15 a\\\\\to \frac{3}{1} \times 0.8 \times \frac{2}{1}= 15 a\\\\\to 6 \times 0.8 = 15 a\\\\\to a =\frac{6 \times 0.8}{ 15}\\\\\to a =\frac{2 \times 0.8}{ 5}\\\\\to a =\frac{1.6}{ 5}\\\\\to a =0.32\\\\[/tex]

The final value of a is "0.32"

Learn more:

brainly.com/question/21630187